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https://github.com/RPCS3/llvm.git
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a01b42e49a
If we want to substitute the relocation of derived pointer with gep of base then we must ensure that relocation of base dominates the relocation of derived pointer. Currently only check for basic block is present. However it is possible that both relocation are in the same basic block but relocation of derived pointer is defined earlier. The patch moves the relocation of base pointer right before relocation of derived pointer in this case. Reviewers: sanjoy,artagnon,igor-laevsky,reames Reviewed By: reames Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D36462 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311067 91177308-0d34-0410-b5e6-96231b3b80d8
150 lines
8.1 KiB
LLVM
150 lines
8.1 KiB
LLVM
; RUN: opt -codegenprepare -S < %s | FileCheck %s
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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declare zeroext i1 @return_i1()
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define i32 @test_sor_basic(i32* %base) gc "statepoint-example" {
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; CHECK: getelementptr i32, i32* %base, i32 15
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; CHECK: getelementptr i32, i32* %base-new, i32 15
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entry:
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%ptr = getelementptr i32, i32* %base, i32 15
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
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%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_two_derived(i32* %base) gc "statepoint-example" {
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; CHECK: getelementptr i32, i32* %base, i32 15
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; CHECK: getelementptr i32, i32* %base, i32 12
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; CHECK: getelementptr i32, i32* %base-new, i32 12
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; CHECK: getelementptr i32, i32* %base-new, i32 15
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entry:
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%ptr = getelementptr i32, i32* %base, i32 15
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%ptr2 = getelementptr i32, i32* %base, i32 12
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
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%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_ooo(i32* %base) gc "statepoint-example" {
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; CHECK: getelementptr i32, i32* %base, i32 15
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; CHECK: getelementptr i32, i32* %base-new, i32 15
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entry:
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%ptr = getelementptr i32, i32* %base, i32 15
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_gep_smallint([3 x i32]* %base) gc "statepoint-example" {
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; CHECK: getelementptr [3 x i32], [3 x i32]* %base, i32 0, i32 2
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; CHECK: getelementptr [3 x i32], [3 x i32]* %base-new, i32 0, i32 2
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entry:
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%ptr = getelementptr [3 x i32], [3 x i32]* %base, i32 0, i32 2
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %base, i32* %ptr)
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%base-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token %tok, i32 7, i32 7)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_gep_largeint([3 x i32]* %base) gc "statepoint-example" {
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; CHECK: getelementptr [3 x i32], [3 x i32]* %base, i32 0, i32 21
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; CHECK-NOT: getelementptr [3 x i32], [3 x i32]* %base-new, i32 0, i32 21
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entry:
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%ptr = getelementptr [3 x i32], [3 x i32]* %base, i32 0, i32 21
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, [3 x i32]* %base, i32* %ptr)
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%base-new = call [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token %tok, i32 7, i32 7)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_noop(i32* %base) gc "statepoint-example" {
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; CHECK: getelementptr i32, i32* %base, i32 15
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; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
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entry:
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%ptr = getelementptr i32, i32* %base, i32 15
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%ptr2 = getelementptr i32, i32* %base, i32 12
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr, i32* %ptr2)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_basic_wrong_order(i32* %base) gc "statepoint-example" {
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; CHECK-LABEL: @test_sor_basic_wrong_order
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; Here we have base relocate inserted after derived. Make sure that we don't
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; produce uses of the relocated base pointer before it's definition.
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entry:
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%ptr = getelementptr i32, i32* %base, i32 15
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; CHECK: getelementptr i32, i32* %base, i32 15
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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; CHECK: %base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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; CHECK-NEXT: getelementptr i32, i32* %base-new, i32 15
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%ret = load i32, i32* %ptr-new
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ret i32 %ret
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}
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define i32 @test_sor_noop_cross_bb(i1 %external-cond, i32* %base) gc "statepoint-example" {
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; CHECK-LABEL: @test_sor_noop_cross_bb
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; Here base relocate doesn't dominate derived relocate. Make sure that we don't
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; produce undefined use of the relocated base pointer.
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entry:
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%ptr = getelementptr i32, i32* %base, i32 15
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; CHECK: getelementptr i32, i32* %base, i32 15
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr)
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br i1 %external-cond, label %left, label %right
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left:
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%ptr-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ret-new = load i32, i32* %ptr-new
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ret i32 %ret-new
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right:
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%ptr-base = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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%ret-base = load i32, i32* %ptr-base
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ret i32 %ret-base
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}
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define i32 @test_sor_noop_same_bb(i1 %external-cond, i32* %base) gc "statepoint-example" {
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; CHECK-LABEL: @test_sor_noop_same_bb
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; Here base relocate doesn't dominate derived relocate. Make sure that we don't
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; produce undefined use of the relocated base pointer.
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entry:
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%ptr1 = getelementptr i32, i32* %base, i32 15
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; CHECK: getelementptr i32, i32* %base, i32 15
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%ptr2 = getelementptr i32, i32* %base, i32 5
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; CHECK: getelementptr i32, i32* %base, i32 5
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%tok = call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32* %base, i32* %ptr1, i32* %ptr2)
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; CHECK: call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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%ptr2-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 9)
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%ret2-new = load i32, i32* %ptr2-new
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; CHECK: getelementptr i32, i32* %base-new, i32 5
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%ptr1-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 8)
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%ret1-new = load i32, i32* %ptr1-new
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; CHECK: getelementptr i32, i32* %base-new, i32 15
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%base-new = call i32* @llvm.experimental.gc.relocate.p0i32(token %tok, i32 7, i32 7)
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%ret-new = add i32 %ret2-new, %ret1-new
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ret i32 %ret-new
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}
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declare token @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
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declare i32* @llvm.experimental.gc.relocate.p0i32(token, i32, i32)
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declare [3 x i32]* @llvm.experimental.gc.relocate.p0a3i32(token, i32, i32)
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