mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-24 20:29:53 +00:00
f29318e873
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277659 91177308-0d34-0410-b5e6-96231b3b80d8
510 lines
11 KiB
LLVM
510 lines
11 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
define i32 @test1(i32 %A) {
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NEXT: ret i32 %A
|
|
;
|
|
%B = add i32 %A, 0
|
|
ret i32 %B
|
|
}
|
|
|
|
define i32 @test2(i32 %A) {
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK-NEXT: ret i32 %A
|
|
;
|
|
%B = add i32 %A, 5
|
|
%C = add i32 %B, -5
|
|
ret i32 %C
|
|
}
|
|
|
|
define i32 @test3(i32 %A) {
|
|
; CHECK-LABEL: @test3(
|
|
; CHECK-NEXT: ret i32 %A
|
|
;
|
|
%B = add i32 %A, 5
|
|
;; This should get converted to an add
|
|
%C = sub i32 %B, 5
|
|
ret i32 %C
|
|
}
|
|
|
|
define i32 @test4(i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test4(
|
|
; CHECK-NEXT: [[D:%.*]] = sub i32 %B, %A
|
|
; CHECK-NEXT: ret i32 [[D]]
|
|
;
|
|
%C = sub i32 0, %A
|
|
; D = B + -A = B - A
|
|
%D = add i32 %B, %C
|
|
ret i32 %D
|
|
}
|
|
|
|
define i32 @test5(i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test5(
|
|
; CHECK-NEXT: [[D:%.*]] = sub i32 %B, %A
|
|
; CHECK-NEXT: ret i32 [[D]]
|
|
;
|
|
%C = sub i32 0, %A
|
|
; D = -A + B = B - A
|
|
%D = add i32 %C, %B
|
|
ret i32 %D
|
|
}
|
|
|
|
define i32 @test6(i32 %A) {
|
|
; CHECK-LABEL: @test6(
|
|
; CHECK-NEXT: [[C:%.*]] = shl i32 %A, 3
|
|
; CHECK-NEXT: ret i32 [[C]]
|
|
;
|
|
%B = mul i32 7, %A
|
|
; C = 7*A+A == 8*A == A << 3
|
|
%C = add i32 %B, %A
|
|
ret i32 %C
|
|
}
|
|
|
|
define i32 @test7(i32 %A) {
|
|
; CHECK-LABEL: @test7(
|
|
; CHECK-NEXT: [[C:%.*]] = shl i32 %A, 3
|
|
; CHECK-NEXT: ret i32 [[C]]
|
|
;
|
|
%B = mul i32 7, %A
|
|
; C = A+7*A == 8*A == A << 3
|
|
%C = add i32 %A, %B
|
|
ret i32 %C
|
|
}
|
|
|
|
; (A & C1)+(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
|
|
define i32 @test8(i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test8(
|
|
; CHECK-NEXT: [[A1:%.*]] = and i32 %A, 7
|
|
; CHECK-NEXT: [[B1:%.*]] = and i32 %B, 128
|
|
; CHECK-NEXT: [[C:%.*]] = or i32 [[A1]], [[B1]]
|
|
; CHECK-NEXT: ret i32 [[C]]
|
|
;
|
|
%A1 = and i32 %A, 7
|
|
%B1 = and i32 %B, 128
|
|
%C = add i32 %A1, %B1
|
|
ret i32 %C
|
|
}
|
|
|
|
define i32 @test9(i32 %A) {
|
|
; CHECK-LABEL: @test9(
|
|
; CHECK-NEXT: [[C:%.*]] = shl i32 %A, 5
|
|
; CHECK-NEXT: ret i32 [[C]]
|
|
;
|
|
%B = shl i32 %A, 4
|
|
; === shl int %A, 5
|
|
%C = add i32 %B, %B
|
|
ret i32 %C
|
|
}
|
|
|
|
define i1 @test10(i8 %A, i8 %b) {
|
|
; CHECK-LABEL: @test10(
|
|
; CHECK-NEXT: [[B:%.*]] = sub i8 0, %b
|
|
; CHECK-NEXT: [[C:%.*]] = icmp ne i8 %A, [[B]]
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%B = add i8 %A, %b
|
|
; === A != -b
|
|
%c = icmp ne i8 %B, 0
|
|
ret i1 %c
|
|
}
|
|
|
|
define <2 x i1> @test10vec(<2 x i8> %a, <2 x i8> %b) {
|
|
; CHECK-LABEL: @test10vec(
|
|
; CHECK-NEXT: [[C:%.*]] = sub <2 x i8> zeroinitializer, %b
|
|
; CHECK-NEXT: [[D:%.*]] = icmp ne <2 x i8> %a, [[C]]
|
|
; CHECK-NEXT: ret <2 x i1> [[D]]
|
|
;
|
|
%c = add <2 x i8> %a, %b
|
|
%d = icmp ne <2 x i8> %c, zeroinitializer
|
|
ret <2 x i1> %d
|
|
}
|
|
|
|
define i1 @test11(i8 %A) {
|
|
; CHECK-LABEL: @test11(
|
|
; CHECK-NEXT: [[C:%.*]] = icmp ne i8 %A, 1
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
%B = add i8 %A, -1
|
|
; === A != 1
|
|
%c = icmp ne i8 %B, 0
|
|
ret i1 %c
|
|
}
|
|
|
|
define <2 x i1> @test11vec(<2 x i8> %a) {
|
|
; CHECK-LABEL: @test11vec(
|
|
; CHECK-NEXT: [[C:%.*]] = icmp ne <2 x i8> %a, <i8 1, i8 1>
|
|
; CHECK-NEXT: ret <2 x i1> [[C]]
|
|
;
|
|
%b = add <2 x i8> %a, <i8 -1, i8 -1>
|
|
%c = icmp ne <2 x i8> %b, zeroinitializer
|
|
ret <2 x i1> %c
|
|
}
|
|
|
|
; Should be transformed into shl A, 1?
|
|
|
|
define i32 @test12(i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test12(
|
|
; CHECK-NEXT: br label %X
|
|
; CHECK: X:
|
|
; CHECK-NEXT: [[C_OK:%.*]] = add i32 %B, %A
|
|
; CHECK-NEXT: [[D:%.*]] = add i32 [[C_OK]], %A
|
|
; CHECK-NEXT: ret i32 [[D]]
|
|
;
|
|
%C_OK = add i32 %B, %A
|
|
br label %X
|
|
|
|
X: ; preds = %0
|
|
%D = add i32 %C_OK, %A
|
|
ret i32 %D
|
|
}
|
|
|
|
define i32 @test13(i32 %A, i32 %B, i32 %C) {
|
|
; CHECK-LABEL: @test13(
|
|
; CHECK-NEXT: [[D_OK:%.*]] = add i32 %A, %B
|
|
; CHECK-NEXT: [[E_OK:%.*]] = add i32 [[D_OK]], %C
|
|
; CHECK-NEXT: [[F:%.*]] = add i32 [[E_OK]], %A
|
|
; CHECK-NEXT: ret i32 [[F]]
|
|
;
|
|
%D_OK = add i32 %A, %B
|
|
%E_OK = add i32 %D_OK, %C
|
|
;; shl A, 1
|
|
%F = add i32 %E_OK, %A
|
|
ret i32 %F
|
|
}
|
|
|
|
define i32 @test14(i32 %offset, i32 %difference) {
|
|
; CHECK-LABEL: @test14(
|
|
; CHECK-NEXT: [[TMP_2:%.*]] = and i32 %difference, 3
|
|
; CHECK-NEXT: [[TMP_3_OK:%.*]] = add i32 [[TMP_2]], %offset
|
|
; CHECK-NEXT: [[TMP_5_MASK:%.*]] = and i32 %difference, -4
|
|
; CHECK-NEXT: [[TMP_8:%.*]] = add i32 [[TMP_3_OK]], [[TMP_5_MASK]]
|
|
; CHECK-NEXT: ret i32 [[TMP_8]]
|
|
;
|
|
%tmp.2 = and i32 %difference, 3
|
|
%tmp.3_OK = add i32 %tmp.2, %offset
|
|
%tmp.5.mask = and i32 %difference, -4
|
|
; == add %offset, %difference
|
|
%tmp.8 = add i32 %tmp.3_OK, %tmp.5.mask
|
|
ret i32 %tmp.8
|
|
}
|
|
|
|
define i8 @test15(i8 %A) {
|
|
; CHECK-LABEL: @test15(
|
|
; CHECK-NEXT: [[C:%.*]] = and i8 %A, 16
|
|
; CHECK-NEXT: ret i8 [[C]]
|
|
;
|
|
%B = add i8 %A, -64
|
|
; Only one bit set
|
|
%C = and i8 %B, 16
|
|
ret i8 %C
|
|
}
|
|
|
|
define i8 @test16(i8 %A) {
|
|
; CHECK-LABEL: @test16(
|
|
; CHECK-NEXT: [[B:%.*]] = and i8 %A, 16
|
|
; CHECK-NEXT: [[C:%.*]] = xor i8 [[B]], 16
|
|
; CHECK-NEXT: ret i8 [[C]]
|
|
;
|
|
%B = add i8 %A, 16
|
|
; Only one bit set
|
|
%C = and i8 %B, 16
|
|
ret i8 %C
|
|
}
|
|
|
|
define i32 @test17(i32 %A) {
|
|
; CHECK-LABEL: @test17(
|
|
; CHECK-NEXT: [[C:%.*]] = sub i32 0, %A
|
|
; CHECK-NEXT: ret i32 [[C]]
|
|
;
|
|
%B = xor i32 %A, -1
|
|
; == sub int 0, %A
|
|
%C = add i32 %B, 1
|
|
ret i32 %C
|
|
}
|
|
|
|
define i8 @test18(i8 %A) {
|
|
; CHECK-LABEL: @test18(
|
|
; CHECK-NEXT: [[C:%.*]] = sub i8 16, %A
|
|
; CHECK-NEXT: ret i8 [[C]]
|
|
;
|
|
%B = xor i8 %A, -1
|
|
; == sub ubyte 16, %A
|
|
%C = add i8 %B, 17
|
|
ret i8 %C
|
|
}
|
|
|
|
define i32 @test19(i1 %C) {
|
|
; CHECK-LABEL: @test19(
|
|
; CHECK-NEXT: [[V:%.*]] = select i1 %C, i32 1123, i32 133
|
|
; CHECK-NEXT: ret i32 [[V]]
|
|
;
|
|
%A = select i1 %C, i32 1000, i32 10
|
|
%V = add i32 %A, 123
|
|
ret i32 %V
|
|
}
|
|
|
|
define i32 @test20(i32 %x) {
|
|
; CHECK-LABEL: @test20(
|
|
; CHECK-NEXT: ret i32 %x
|
|
;
|
|
%tmp.2 = xor i32 %x, -2147483648
|
|
;; Add of sign bit -> xor of sign bit.
|
|
%tmp.4 = add i32 %tmp.2, -2147483648
|
|
ret i32 %tmp.4
|
|
}
|
|
|
|
define i1 @test21(i32 %x) {
|
|
; CHECK-LABEL: @test21(
|
|
; CHECK-NEXT: [[Y:%.*]] = icmp eq i32 %x, 119
|
|
; CHECK-NEXT: ret i1 [[Y]]
|
|
;
|
|
%t = add i32 %x, 4
|
|
%y = icmp eq i32 %t, 123
|
|
ret i1 %y
|
|
}
|
|
|
|
define <2 x i1> @test21vec(<2 x i32> %x) {
|
|
; CHECK-LABEL: @test21vec(
|
|
; CHECK-NEXT: [[Y:%.*]] = icmp eq <2 x i32> %x, <i32 119, i32 119>
|
|
; CHECK-NEXT: ret <2 x i1> [[Y]]
|
|
;
|
|
%t = add <2 x i32> %x, <i32 4, i32 4>
|
|
%y = icmp eq <2 x i32> %t, <i32 123, i32 123>
|
|
ret <2 x i1> %y
|
|
}
|
|
|
|
define i32 @test22(i32 %V) {
|
|
; CHECK-LABEL: @test22(
|
|
; CHECK-NEXT: switch i32 %V, label %Default [
|
|
; CHECK-NEXT: i32 10, label %Lab1
|
|
; CHECK-NEXT: i32 20, label %Lab2
|
|
; CHECK-NEXT: ]
|
|
; CHECK: Default:
|
|
; CHECK-NEXT: ret i32 123
|
|
; CHECK: Lab1:
|
|
; CHECK-NEXT: ret i32 12312
|
|
; CHECK: Lab2:
|
|
; CHECK-NEXT: ret i32 1231231
|
|
;
|
|
%V2 = add i32 %V, 10
|
|
switch i32 %V2, label %Default [
|
|
i32 20, label %Lab1
|
|
i32 30, label %Lab2
|
|
]
|
|
|
|
Default: ; preds = %0
|
|
ret i32 123
|
|
|
|
Lab1: ; preds = %0
|
|
ret i32 12312
|
|
|
|
Lab2: ; preds = %0
|
|
ret i32 1231231
|
|
}
|
|
|
|
define i32 @test23(i1 %C, i32 %a) {
|
|
; CHECK-LABEL: @test23(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br i1 %C, label %endif, label %else
|
|
; CHECK: else:
|
|
; CHECK-NEXT: br label %endif
|
|
; CHECK: endif:
|
|
; CHECK-NEXT: [[B_0:%.*]] = phi i32 [ 1, %entry ], [ 2, %else ]
|
|
; CHECK-NEXT: ret i32 [[B_0]]
|
|
;
|
|
entry:
|
|
br i1 %C, label %endif, label %else
|
|
|
|
else: ; preds = %entry
|
|
br label %endif
|
|
|
|
endif: ; preds = %else, %entry
|
|
%b.0 = phi i32 [ 0, %entry ], [ 1, %else ]
|
|
%tmp.4 = add i32 %b.0, 1
|
|
ret i32 %tmp.4
|
|
}
|
|
|
|
define i32 @test24(i32 %A) {
|
|
; CHECK-LABEL: @test24(
|
|
; CHECK-NEXT: [[B:%.*]] = shl i32 %A, 1
|
|
; CHECK-NEXT: ret i32 [[B]]
|
|
;
|
|
%B = add i32 %A, 1
|
|
%C = shl i32 %B, 1
|
|
%D = sub i32 %C, 2
|
|
ret i32 %D
|
|
}
|
|
|
|
define i64 @test25(i64 %Y) {
|
|
; CHECK-LABEL: @test25(
|
|
; CHECK-NEXT: [[TMP_8:%.*]] = shl i64 %Y, 3
|
|
; CHECK-NEXT: ret i64 [[TMP_8]]
|
|
;
|
|
%tmp.4 = shl i64 %Y, 2
|
|
%tmp.12 = shl i64 %Y, 2
|
|
%tmp.8 = add i64 %tmp.4, %tmp.12
|
|
ret i64 %tmp.8
|
|
}
|
|
|
|
define i32 @test26(i32 %A, i32 %B) {
|
|
; CHECK-LABEL: @test26(
|
|
; CHECK-NEXT: ret i32 %A
|
|
;
|
|
%C = add i32 %A, %B
|
|
%D = sub i32 %C, %B
|
|
ret i32 %D
|
|
}
|
|
|
|
define i32 @test27(i1 %C, i32 %X, i32 %Y) {
|
|
; CHECK-LABEL: @test27(
|
|
; CHECK-NEXT: [[C_UPGRD_1_V:%.*]] = select i1 %C, i32 %X, i32 123
|
|
; CHECK-NEXT: ret i32 [[C_UPGRD_1_V]]
|
|
;
|
|
%A = add i32 %X, %Y
|
|
%B = add i32 %Y, 123
|
|
;; Fold add through select.
|
|
%C.upgrd.1 = select i1 %C, i32 %A, i32 %B
|
|
%D = sub i32 %C.upgrd.1, %Y
|
|
ret i32 %D
|
|
}
|
|
|
|
define i32 @test28(i32 %X) {
|
|
; CHECK-LABEL: @test28(
|
|
; CHECK-NEXT: [[Z:%.*]] = sub i32 -1192, %X
|
|
; CHECK-NEXT: ret i32 [[Z]]
|
|
;
|
|
%Y = add i32 %X, 1234
|
|
%Z = sub i32 42, %Y
|
|
ret i32 %Z
|
|
}
|
|
|
|
define i32 @test29(i32 %X, i32 %x) {
|
|
; CHECK-LABEL: @test29(
|
|
; CHECK-NEXT: [[TMP_2:%.*]] = sub i32 %X, %x
|
|
; CHECK-NEXT: [[TMP_7:%.*]] = and i32 %X, 63
|
|
; CHECK-NEXT: [[TMP_9:%.*]] = and i32 [[TMP_2]], -64
|
|
; CHECK-NEXT: [[TMP_10:%.*]] = or i32 [[TMP_7]], [[TMP_9]]
|
|
; CHECK-NEXT: ret i32 [[TMP_10]]
|
|
;
|
|
%tmp.2 = sub i32 %X, %x
|
|
%tmp.2.mask = and i32 %tmp.2, 63
|
|
%tmp.6 = add i32 %tmp.2.mask, %x
|
|
%tmp.7 = and i32 %tmp.6, 63
|
|
%tmp.9 = and i32 %tmp.2, -64
|
|
%tmp.10 = or i32 %tmp.7, %tmp.9
|
|
ret i32 %tmp.10
|
|
}
|
|
|
|
define i64 @test30(i64 %x) {
|
|
; CHECK-LABEL: @test30(
|
|
; CHECK-NEXT: ret i64 %x
|
|
;
|
|
%tmp.2 = xor i64 %x, -9223372036854775808
|
|
;; Add of sign bit -> xor of sign bit.
|
|
%tmp.4 = add i64 %tmp.2, -9223372036854775808
|
|
ret i64 %tmp.4
|
|
}
|
|
|
|
define i32 @test31(i32 %A) {
|
|
; CHECK-LABEL: @test31(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = mul i32 %A, 5
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
|
;
|
|
%B = add i32 %A, 4
|
|
%C = mul i32 %B, 5
|
|
%D = sub i32 %C, 20
|
|
ret i32 %D
|
|
}
|
|
|
|
define i32 @test32(i32 %A) {
|
|
; CHECK-LABEL: @test32(
|
|
; CHECK-NEXT: [[B:%.*]] = shl i32 %A, 2
|
|
; CHECK-NEXT: ret i32 [[B]]
|
|
;
|
|
%B = add i32 %A, 4
|
|
%C = shl i32 %B, 2
|
|
%D = sub i32 %C, 16
|
|
ret i32 %D
|
|
}
|
|
|
|
define i8 @test33(i8 %A) {
|
|
; CHECK-LABEL: @test33(
|
|
; CHECK-NEXT: [[C:%.*]] = or i8 %A, 1
|
|
; CHECK-NEXT: ret i8 [[C]]
|
|
;
|
|
%B = and i8 %A, -2
|
|
%C = add i8 %B, 1
|
|
ret i8 %C
|
|
}
|
|
|
|
define i8 @test34(i8 %A) {
|
|
; CHECK-LABEL: @test34(
|
|
; CHECK-NEXT: [[C:%.*]] = and i8 %A, 12
|
|
; CHECK-NEXT: ret i8 [[C]]
|
|
;
|
|
%B = add i8 %A, 64
|
|
%C = and i8 %B, 12
|
|
ret i8 %C
|
|
}
|
|
|
|
define i32 @test35(i32 %a) {
|
|
; CHECK-LABEL: @test35(
|
|
; CHECK-NEXT: ret i32 -1
|
|
;
|
|
%tmpnot = xor i32 %a, -1
|
|
%tmp2 = add i32 %tmpnot, %a
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
define i32 @test36(i32 %a) {
|
|
; CHECK-LABEL: @test36(
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
%x = and i32 %a, -2
|
|
%y = and i32 %a, -126
|
|
%z = add i32 %x, %y
|
|
%q = and i32 %z, 1 ; always zero
|
|
ret i32 %q
|
|
}
|
|
|
|
define i1 @test37(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test37(
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %b, 0
|
|
; CHECK-NEXT: ret i1 [[CMP]]
|
|
;
|
|
%add = add i32 %a, %b
|
|
%cmp = icmp eq i32 %add, %a
|
|
ret i1 %cmp
|
|
}
|
|
|
|
define i1 @test38(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test38(
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %a, 0
|
|
; CHECK-NEXT: ret i1 [[CMP]]
|
|
;
|
|
%add = add i32 %a, %b
|
|
%cmp = icmp eq i32 %add, %b
|
|
ret i1 %cmp
|
|
}
|
|
|
|
define i1 @test39(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test39(
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %b, 0
|
|
; CHECK-NEXT: ret i1 [[CMP]]
|
|
;
|
|
%add = add i32 %b, %a
|
|
%cmp = icmp eq i32 %add, %a
|
|
ret i1 %cmp
|
|
}
|
|
|
|
define i1 @test40(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: @test40(
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %a, 0
|
|
; CHECK-NEXT: ret i1 [[CMP]]
|
|
;
|
|
%add = add i32 %b, %a
|
|
%cmp = icmp eq i32 %add, %b
|
|
ret i1 %cmp
|
|
}
|