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76735fbd2e
A GEP of a non-weak global variable will not be equivalent to another non-weak global variable or a GEP of such a variable. Differential Revision: http://reviews.llvm.org/D4238 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212360 91177308-0d34-0410-b5e6-96231b3b80d8
488 lines
21 KiB
LLVM
488 lines
21 KiB
LLVM
; "PLAIN" - No optimizations. This tests the target-independent
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; constant folder.
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; RUN: opt -S -o - < %s | FileCheck --check-prefix=PLAIN %s
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; "OPT" - Optimizations but no targetdata. This tests target-independent
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; folding in the optimizers.
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; RUN: opt -S -o - -instcombine -globalopt < %s | FileCheck --check-prefix=OPT %s
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; "TO" - Optimizations and targetdata. This tests target-dependent
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; folding in the optimizers.
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; RUN: opt -S -o - -instcombine -globalopt -default-data-layout="e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" < %s | FileCheck --check-prefix=TO %s
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; "SCEV" - ScalarEvolution but no targetdata.
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; RUN: opt -analyze -scalar-evolution < %s | FileCheck --check-prefix=SCEV %s
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; The automatic constant folder in opt does not have targetdata access, so
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; it can't fold gep arithmetic, in general. However, the constant folder run
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; from instcombine and global opt can use targetdata.
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; PLAIN: @G8 = global i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1)
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; PLAIN: @G1 = global i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1)
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; PLAIN: @F8 = global i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2)
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; PLAIN: @F1 = global i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2)
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; PLAIN: @H8 = global i8* getelementptr (i8* null, i32 -1)
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; PLAIN: @H1 = global i1* getelementptr (i1* null, i32 -1)
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; OPT: @G8 = global i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1)
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; OPT: @G1 = global i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1)
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; OPT: @F8 = global i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2)
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; OPT: @F1 = global i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2)
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; OPT: @H8 = global i8* getelementptr (i8* null, i32 -1)
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; OPT: @H1 = global i1* getelementptr (i1* null, i32 -1)
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; TO: @G8 = global i8* null
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; TO: @G1 = global i1* null
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; TO: @F8 = global i8* inttoptr (i64 -1 to i8*)
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; TO: @F1 = global i1* inttoptr (i64 -1 to i1*)
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; TO: @H8 = global i8* inttoptr (i64 -1 to i8*)
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; TO: @H1 = global i1* inttoptr (i64 -1 to i1*)
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@G8 = global i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1)
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@G1 = global i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1)
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@F8 = global i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2)
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@F1 = global i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2)
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@H8 = global i8* getelementptr (i8* inttoptr (i32 0 to i8*), i32 -1)
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@H1 = global i1* getelementptr (i1* inttoptr (i32 0 to i1*), i32 -1)
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; The target-independent folder should be able to do some clever
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; simplifications on sizeof, alignof, and offsetof expressions. The
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; target-dependent folder should fold these down to constants.
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; PLAIN: @a = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310)
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; PLAIN: @b = constant i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64)
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; PLAIN: @c = constant i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2)
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; PLAIN: @d = constant i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11)
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; PLAIN: @e = constant i64 ptrtoint (double* getelementptr ({ double, float, double, double }* null, i64 0, i32 2) to i64)
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; PLAIN: @f = constant i64 1
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; PLAIN: @g = constant i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64)
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; PLAIN: @h = constant i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64)
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; PLAIN: @i = constant i64 ptrtoint (i1** getelementptr ({ i1, i1* }* null, i64 0, i32 1) to i64)
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; OPT: @a = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310)
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; OPT: @b = constant i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64)
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; OPT: @c = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2)
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; OPT: @d = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11)
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; OPT: @e = constant i64 ptrtoint (double* getelementptr ({ double, float, double, double }* null, i64 0, i32 2) to i64)
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; OPT: @f = constant i64 1
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; OPT: @g = constant i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64)
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; OPT: @h = constant i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64)
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; OPT: @i = constant i64 ptrtoint (i1** getelementptr ({ i1, i1* }* null, i64 0, i32 1) to i64)
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; TO: @a = constant i64 18480
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; TO: @b = constant i64 8
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; TO: @c = constant i64 16
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; TO: @d = constant i64 88
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; TO: @e = constant i64 16
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; TO: @f = constant i64 1
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; TO: @g = constant i64 8
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; TO: @h = constant i64 8
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; TO: @i = constant i64 8
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@a = constant i64 mul (i64 3, i64 mul (i64 ptrtoint ({[7 x double], [7 x double]}* getelementptr ({[7 x double], [7 x double]}* null, i64 11) to i64), i64 5))
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@b = constant i64 ptrtoint ([13 x double]* getelementptr ({i1, [13 x double]}* null, i64 0, i32 1) to i64)
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@c = constant i64 ptrtoint (double* getelementptr ({double, double, double, double}* null, i64 0, i32 2) to i64)
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@d = constant i64 ptrtoint (double* getelementptr ([13 x double]* null, i64 0, i32 11) to i64)
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@e = constant i64 ptrtoint (double* getelementptr ({double, float, double, double}* null, i64 0, i32 2) to i64)
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@f = constant i64 ptrtoint (<{ i16, i128 }>* getelementptr ({i1, <{ i16, i128 }>}* null, i64 0, i32 1) to i64)
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@g = constant i64 ptrtoint ({double, double}* getelementptr ({i1, {double, double}}* null, i64 0, i32 1) to i64)
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@h = constant i64 ptrtoint (double** getelementptr (double** null, i64 1) to i64)
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@i = constant i64 ptrtoint (double** getelementptr ({i1, double*}* null, i64 0, i32 1) to i64)
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; The target-dependent folder should cast GEP indices to integer-sized pointers.
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; PLAIN: @M = constant i64* getelementptr (i64* null, i32 1)
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; PLAIN: @N = constant i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1)
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; PLAIN: @O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
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; OPT: @M = constant i64* getelementptr (i64* null, i32 1)
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; OPT: @N = constant i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1)
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; OPT: @O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
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; TO: @M = constant i64* inttoptr (i64 8 to i64*)
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; TO: @N = constant i64* inttoptr (i64 8 to i64*)
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; TO: @O = constant i64* inttoptr (i64 8 to i64*)
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@M = constant i64* getelementptr (i64* null, i32 1)
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@N = constant i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1)
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@O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
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; Fold GEP of a GEP. Very simple cases are folded without targetdata.
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; PLAIN: @Y = global [3 x { i32, i32 }]* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 2)
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; PLAIN: @Z = global i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1)
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; OPT: @Y = global [3 x { i32, i32 }]* getelementptr ([3 x { i32, i32 }]* @ext, i64 2)
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; OPT: @Z = global i32* getelementptr (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1)
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; TO: @Y = global [3 x { i32, i32 }]* getelementptr ([3 x { i32, i32 }]* @ext, i64 2)
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; TO: @Z = global i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 1)
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@ext = external global [3 x { i32, i32 }]
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@Y = global [3 x { i32, i32 }]* getelementptr inbounds ([3 x { i32, i32 }]* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 1), i64 1)
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@Z = global i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1)
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; Duplicate all of the above as function return values rather than
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; global initializers.
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; PLAIN: define i8* @goo8() #0 {
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; PLAIN: %t = bitcast i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1) to i8*
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; PLAIN: ret i8* %t
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; PLAIN: }
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; PLAIN: define i1* @goo1() #0 {
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; PLAIN: %t = bitcast i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1) to i1*
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; PLAIN: ret i1* %t
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; PLAIN: }
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; PLAIN: define i8* @foo8() #0 {
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; PLAIN: %t = bitcast i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2) to i8*
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; PLAIN: ret i8* %t
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; PLAIN: }
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; PLAIN: define i1* @foo1() #0 {
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; PLAIN: %t = bitcast i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2) to i1*
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; PLAIN: ret i1* %t
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; PLAIN: }
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; PLAIN: define i8* @hoo8() #0 {
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; PLAIN: %t = bitcast i8* getelementptr (i8* null, i32 -1) to i8*
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; PLAIN: ret i8* %t
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; PLAIN: }
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; PLAIN: define i1* @hoo1() #0 {
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; PLAIN: %t = bitcast i1* getelementptr (i1* null, i32 -1) to i1*
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; PLAIN: ret i1* %t
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; PLAIN: }
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; OPT: define i8* @goo8() #0 {
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; OPT: ret i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1)
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; OPT: }
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; OPT: define i1* @goo1() #0 {
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; OPT: ret i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1)
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; OPT: }
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; OPT: define i8* @foo8() #0 {
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; OPT: ret i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2)
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; OPT: }
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; OPT: define i1* @foo1() #0 {
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; OPT: ret i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2)
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; OPT: }
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; OPT: define i8* @hoo8() #0 {
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; OPT: ret i8* getelementptr (i8* null, i32 -1)
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; OPT: }
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; OPT: define i1* @hoo1() #0 {
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; OPT: ret i1* getelementptr (i1* null, i32 -1)
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; OPT: }
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; TO: define i8* @goo8() #0 {
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; TO: ret i8* null
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; TO: }
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; TO: define i1* @goo1() #0 {
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; TO: ret i1* null
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; TO: }
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; TO: define i8* @foo8() #0 {
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; TO: ret i8* inttoptr (i64 -1 to i8*)
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; TO: }
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; TO: define i1* @foo1() #0 {
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; TO: ret i1* inttoptr (i64 -1 to i1*)
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; TO: }
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; TO: define i8* @hoo8() #0 {
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; TO: ret i8* inttoptr (i64 -1 to i8*)
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; TO: }
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; TO: define i1* @hoo1() #0 {
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; TO: ret i1* inttoptr (i64 -1 to i1*)
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; TO: }
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; SCEV: Classifying expressions for: @goo8
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; SCEV: %t = bitcast i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1) to i8*
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; SCEV: --> ((-1 * sizeof(i8)) + inttoptr (i32 1 to i8*))
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; SCEV: Classifying expressions for: @goo1
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; SCEV: %t = bitcast i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1) to i1*
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; SCEV: --> ((-1 * sizeof(i1)) + inttoptr (i32 1 to i1*))
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; SCEV: Classifying expressions for: @foo8
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; SCEV: %t = bitcast i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2) to i8*
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; SCEV: --> ((-2 * sizeof(i8)) + inttoptr (i32 1 to i8*))
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; SCEV: Classifying expressions for: @foo1
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; SCEV: %t = bitcast i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2) to i1*
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; SCEV: --> ((-2 * sizeof(i1)) + inttoptr (i32 1 to i1*))
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; SCEV: Classifying expressions for: @hoo8
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; SCEV: --> (-1 * sizeof(i8))
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; SCEV: Classifying expressions for: @hoo1
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; SCEV: --> (-1 * sizeof(i1))
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define i8* @goo8() nounwind {
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%t = bitcast i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -1) to i8*
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ret i8* %t
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}
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define i1* @goo1() nounwind {
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%t = bitcast i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -1) to i1*
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ret i1* %t
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}
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define i8* @foo8() nounwind {
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%t = bitcast i8* getelementptr (i8* inttoptr (i32 1 to i8*), i32 -2) to i8*
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ret i8* %t
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}
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define i1* @foo1() nounwind {
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%t = bitcast i1* getelementptr (i1* inttoptr (i32 1 to i1*), i32 -2) to i1*
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ret i1* %t
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}
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define i8* @hoo8() nounwind {
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%t = bitcast i8* getelementptr (i8* inttoptr (i32 0 to i8*), i32 -1) to i8*
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ret i8* %t
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}
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define i1* @hoo1() nounwind {
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%t = bitcast i1* getelementptr (i1* inttoptr (i32 0 to i1*), i32 -1) to i1*
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ret i1* %t
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}
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; PLAIN: define i64 @fa() #0 {
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; PLAIN: %t = bitcast i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fb() #0 {
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; PLAIN: %t = bitcast i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fc() #0 {
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; PLAIN: %t = bitcast i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fd() #0 {
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; PLAIN: %t = bitcast i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fe() #0 {
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; PLAIN: %t = bitcast i64 ptrtoint (double* getelementptr ({ double, float, double, double }* null, i64 0, i32 2) to i64) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @ff() #0 {
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; PLAIN: %t = bitcast i64 1 to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fg() #0 {
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; PLAIN: %t = bitcast i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fh() #0 {
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; PLAIN: %t = bitcast i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; PLAIN: define i64 @fi() #0 {
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; PLAIN: %t = bitcast i64 ptrtoint (i1** getelementptr ({ i1, i1* }* null, i64 0, i32 1) to i64) to i64
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; PLAIN: ret i64 %t
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; PLAIN: }
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; OPT: define i64 @fa() #0 {
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; OPT: ret i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310)
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; OPT: }
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; OPT: define i64 @fb() #0 {
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; OPT: ret i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64)
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; OPT: }
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; OPT: define i64 @fc() #0 {
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; OPT: ret i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2)
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; OPT: }
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; OPT: define i64 @fd() #0 {
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; OPT: ret i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11)
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; OPT: }
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; OPT: define i64 @fe() #0 {
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; OPT: ret i64 ptrtoint (double* getelementptr ({ double, float, double, double }* null, i64 0, i32 2) to i64)
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; OPT: }
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; OPT: define i64 @ff() #0 {
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; OPT: ret i64 1
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; OPT: }
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; OPT: define i64 @fg() #0 {
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; OPT: ret i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64)
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; OPT: }
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; OPT: define i64 @fh() #0 {
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; OPT: ret i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64)
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; OPT: }
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; OPT: define i64 @fi() #0 {
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; OPT: ret i64 ptrtoint (i1** getelementptr ({ i1, i1* }* null, i64 0, i32 1) to i64)
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; OPT: }
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; TO: define i64 @fa() #0 {
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; TO: ret i64 18480
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; TO: }
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; TO: define i64 @fb() #0 {
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; TO: ret i64 8
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; TO: }
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; TO: define i64 @fc() #0 {
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; TO: ret i64 16
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; TO: }
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; TO: define i64 @fd() #0 {
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; TO: ret i64 88
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; TO: }
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; TO: define i64 @fe() #0 {
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; TO: ret i64 16
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; TO: }
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; TO: define i64 @ff() #0 {
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; TO: ret i64 1
|
|
; TO: }
|
|
; TO: define i64 @fg() #0 {
|
|
; TO: ret i64 8
|
|
; TO: }
|
|
; TO: define i64 @fh() #0 {
|
|
; TO: ret i64 8
|
|
; TO: }
|
|
; TO: define i64 @fi() #0 {
|
|
; TO: ret i64 8
|
|
; TO: }
|
|
; SCEV: Classifying expressions for: @fa
|
|
; SCEV: %t = bitcast i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310) to i64
|
|
; SCEV: --> (2310 * sizeof(double))
|
|
; SCEV: Classifying expressions for: @fb
|
|
; SCEV: %t = bitcast i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64) to i64
|
|
; SCEV: --> alignof(double)
|
|
; SCEV: Classifying expressions for: @fc
|
|
; SCEV: %t = bitcast i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2) to i64
|
|
; SCEV: --> (2 * sizeof(double))
|
|
; SCEV: Classifying expressions for: @fd
|
|
; SCEV: %t = bitcast i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11) to i64
|
|
; SCEV: --> (11 * sizeof(double))
|
|
; SCEV: Classifying expressions for: @fe
|
|
; SCEV: %t = bitcast i64 ptrtoint (double* getelementptr ({ double, float, double, double }* null, i64 0, i32 2) to i64) to i64
|
|
; SCEV: --> offsetof({ double, float, double, double }, 2)
|
|
; SCEV: Classifying expressions for: @ff
|
|
; SCEV: %t = bitcast i64 1 to i64
|
|
; SCEV: --> 1
|
|
; SCEV: Classifying expressions for: @fg
|
|
; SCEV: %t = bitcast i64 ptrtoint (double* getelementptr ({ i1, double }* null, i64 0, i32 1) to i64) to i64
|
|
; SCEV: --> alignof(double)
|
|
; SCEV: Classifying expressions for: @fh
|
|
; SCEV: %t = bitcast i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64) to i64
|
|
; SCEV: --> sizeof(i1*)
|
|
; SCEV: Classifying expressions for: @fi
|
|
; SCEV: %t = bitcast i64 ptrtoint (i1** getelementptr ({ i1, i1* }* null, i64 0, i32 1) to i64) to i64
|
|
; SCEV: --> alignof(i1*)
|
|
|
|
define i64 @fa() nounwind {
|
|
%t = bitcast i64 mul (i64 3, i64 mul (i64 ptrtoint ({[7 x double], [7 x double]}* getelementptr ({[7 x double], [7 x double]}* null, i64 11) to i64), i64 5)) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fb() nounwind {
|
|
%t = bitcast i64 ptrtoint ([13 x double]* getelementptr ({i1, [13 x double]}* null, i64 0, i32 1) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fc() nounwind {
|
|
%t = bitcast i64 ptrtoint (double* getelementptr ({double, double, double, double}* null, i64 0, i32 2) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fd() nounwind {
|
|
%t = bitcast i64 ptrtoint (double* getelementptr ([13 x double]* null, i64 0, i32 11) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fe() nounwind {
|
|
%t = bitcast i64 ptrtoint (double* getelementptr ({double, float, double, double}* null, i64 0, i32 2) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @ff() nounwind {
|
|
%t = bitcast i64 ptrtoint (<{ i16, i128 }>* getelementptr ({i1, <{ i16, i128 }>}* null, i64 0, i32 1) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fg() nounwind {
|
|
%t = bitcast i64 ptrtoint ({double, double}* getelementptr ({i1, {double, double}}* null, i64 0, i32 1) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fh() nounwind {
|
|
%t = bitcast i64 ptrtoint (double** getelementptr (double** null, i32 1) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
define i64 @fi() nounwind {
|
|
%t = bitcast i64 ptrtoint (double** getelementptr ({i1, double*}* null, i64 0, i32 1) to i64) to i64
|
|
ret i64 %t
|
|
}
|
|
|
|
; PLAIN: define i64* @fM() #0 {
|
|
; PLAIN: %t = bitcast i64* getelementptr (i64* null, i32 1) to i64*
|
|
; PLAIN: ret i64* %t
|
|
; PLAIN: }
|
|
; PLAIN: define i64* @fN() #0 {
|
|
; PLAIN: %t = bitcast i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1) to i64*
|
|
; PLAIN: ret i64* %t
|
|
; PLAIN: }
|
|
; PLAIN: define i64* @fO() #0 {
|
|
; PLAIN: %t = bitcast i64* getelementptr ([2 x i64]* null, i32 0, i32 1) to i64*
|
|
; PLAIN: ret i64* %t
|
|
; PLAIN: }
|
|
; OPT: define i64* @fM() #0 {
|
|
; OPT: ret i64* getelementptr (i64* null, i32 1)
|
|
; OPT: }
|
|
; OPT: define i64* @fN() #0 {
|
|
; OPT: ret i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1)
|
|
; OPT: }
|
|
; OPT: define i64* @fO() #0 {
|
|
; OPT: ret i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
|
|
; OPT: }
|
|
; TO: define i64* @fM() #0 {
|
|
; TO: ret i64* inttoptr (i64 8 to i64*)
|
|
; TO: }
|
|
; TO: define i64* @fN() #0 {
|
|
; TO: ret i64* inttoptr (i64 8 to i64*)
|
|
; TO: }
|
|
; TO: define i64* @fO() #0 {
|
|
; TO: ret i64* inttoptr (i64 8 to i64*)
|
|
; TO: }
|
|
; SCEV: Classifying expressions for: @fM
|
|
; SCEV: %t = bitcast i64* getelementptr (i64* null, i32 1) to i64*
|
|
; SCEV: --> sizeof(i64)
|
|
; SCEV: Classifying expressions for: @fN
|
|
; SCEV: %t = bitcast i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1) to i64*
|
|
; SCEV: --> sizeof(i64)
|
|
; SCEV: Classifying expressions for: @fO
|
|
; SCEV: %t = bitcast i64* getelementptr ([2 x i64]* null, i32 0, i32 1) to i64*
|
|
; SCEV: --> sizeof(i64)
|
|
|
|
define i64* @fM() nounwind {
|
|
%t = bitcast i64* getelementptr (i64* null, i32 1) to i64*
|
|
ret i64* %t
|
|
}
|
|
define i64* @fN() nounwind {
|
|
%t = bitcast i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1) to i64*
|
|
ret i64* %t
|
|
}
|
|
define i64* @fO() nounwind {
|
|
%t = bitcast i64* getelementptr ([2 x i64]* null, i32 0, i32 1) to i64*
|
|
ret i64* %t
|
|
}
|
|
|
|
; PLAIN: define i32* @fZ() #0 {
|
|
; PLAIN: %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
|
|
; PLAIN: ret i32* %t
|
|
; PLAIN: }
|
|
; OPT: define i32* @fZ() #0 {
|
|
; OPT: ret i32* getelementptr (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1)
|
|
; OPT: }
|
|
; TO: define i32* @fZ() #0 {
|
|
; TO: ret i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 1)
|
|
; TO: }
|
|
; SCEV: Classifying expressions for: @fZ
|
|
; SCEV: %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
|
|
; SCEV: --> ((3 * sizeof(i32)) + @ext)
|
|
|
|
define i32* @fZ() nounwind {
|
|
%t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
|
|
ret i32* %t
|
|
}
|
|
|
|
; PR15262 - Check GEP folding with casts between address spaces.
|
|
|
|
@p0 = global [4 x i8] zeroinitializer, align 1
|
|
@p12 = addrspace(12) global [4 x i8] zeroinitializer, align 1
|
|
|
|
define i8* @different_addrspace() nounwind noinline {
|
|
; OPT: different_addrspace
|
|
%p = getelementptr inbounds i8* addrspacecast ([4 x i8] addrspace(12)* @p12 to i8*),
|
|
i32 2
|
|
ret i8* %p
|
|
; OPT: ret i8* getelementptr (i8* addrspacecast (i8 addrspace(12)* getelementptr inbounds ([4 x i8] addrspace(12)* @p12, i32 0, i32 0) to i8*), i32 2)
|
|
}
|
|
|
|
define i8* @same_addrspace() nounwind noinline {
|
|
; OPT: same_addrspace
|
|
%p = getelementptr inbounds i8* bitcast ([4 x i8] * @p0 to i8*), i32 2
|
|
ret i8* %p
|
|
; OPT: ret i8* getelementptr inbounds ([4 x i8]* @p0, i32 0, i32 2)
|
|
}
|
|
|
|
@gv1 = internal global i32 1
|
|
@gv2 = internal global [1 x i32] [ i32 2 ]
|
|
@gv3 = internal global [1 x i32] [ i32 2 ]
|
|
|
|
; Handled by TI-independent constant folder
|
|
define i1 @gv_gep_vs_gv() {
|
|
ret i1 icmp eq (i32* getelementptr inbounds ([1 x i32]* @gv2, i32 0, i32 0), i32* @gv1)
|
|
}
|
|
; PLAIN: gv_gep_vs_gv
|
|
; PLAIN: ret i1 false
|
|
|
|
define i1 @gv_gep_vs_gv_gep() {
|
|
ret i1 icmp eq (i32* getelementptr inbounds ([1 x i32]* @gv2, i32 0, i32 0), i32* getelementptr inbounds ([1 x i32]* @gv3, i32 0, i32 0))
|
|
}
|
|
; PLAIN: gv_gep_vs_gv_gep
|
|
; PLAIN: ret i1 false
|
|
|
|
; CHECK: attributes #0 = { nounwind }
|