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bea813a1c9
The AllConstant check needs to be moved out of the if/else if chain to avoid a test regression. The "there is no SimplifyZExt" comment puzzles me, since there is SimplifyCastInst. Additionally, the Simplify* calls seem to not see the operand as constant, so this needs to be tried if the simplify failed. llvm-svn: 362653
109 lines
3.7 KiB
LLVM
109 lines
3.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -newgvn < %s | FileCheck %s
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define i32 addrspace(1)* @addrspacecast(i32* %ptr) {
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; CHECK-LABEL: @addrspacecast(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: [[Z1:%.*]] = addrspacecast i32* [[PTR:%.*]] to i32 addrspace(1)*
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store i32 addrspace(1)* [[Z1]], i32 addrspace(1)** undef
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; CHECK-NEXT: ret i32 addrspace(1)* [[Z1]]
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;
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block1:
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%z1 = addrspacecast i32* %ptr to i32 addrspace(1)*
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br label %block2
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block2:
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%z2 = addrspacecast i32* %ptr to i32 addrspace(1)*
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store i32 addrspace(1)* %z1, i32 addrspace(1)** undef
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ret i32 addrspace(1)* %z2
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}
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; Make sure casts with the same source value but different result
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; address spaces aren't incorrectly merged.
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define i32 addrspace(1)* @addrspacecast_different_result_types(i32* %ptr) {
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; CHECK-LABEL: @addrspacecast_different_result_types(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: [[Z1:%.*]] = addrspacecast i32* [[PTR:%.*]] to i32 addrspace(2)*
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: [[Z2:%.*]] = addrspacecast i32* [[PTR]] to i32 addrspace(1)*
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; CHECK-NEXT: store i32 addrspace(2)* [[Z1]], i32 addrspace(2)** undef
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; CHECK-NEXT: ret i32 addrspace(1)* [[Z2]]
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;
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block1:
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%z1 = addrspacecast i32* %ptr to i32 addrspace(2)*
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br label %block2
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block2:
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%z2 = addrspacecast i32* %ptr to i32 addrspace(1)*
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store i32 addrspace(2)* %z1, i32 addrspace(2)** undef
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ret i32 addrspace(1)* %z2
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}
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define i32 addrspace(1)* @addrspacecast_simplify(i32 addrspace(1)* %ptr) {
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; CHECK-LABEL: @addrspacecast_simplify(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: [[CAST0:%.*]] = addrspacecast i32 addrspace(1)* [[PTR:%.*]] to i32*
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store i32 addrspace(1)* [[PTR]], i32 addrspace(1)** undef
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; CHECK-NEXT: ret i32 addrspace(1)* [[PTR]]
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;
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block1:
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%cast0 = addrspacecast i32 addrspace(1)* %ptr to i32*
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%z1 = addrspacecast i32* %cast0 to i32 addrspace(1)*
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br label %block2
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block2:
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%z2 = addrspacecast i32* %cast0 to i32 addrspace(1)*
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store i32 addrspace(1)* %z1, i32 addrspace(1)** undef
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ret i32 addrspace(1)* %z2
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}
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@h = common local_unnamed_addr global i32* null, align 4
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define i32 addrspace(1)* @addrspacecast_constant() {
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; CHECK-LABEL: @addrspacecast_constant(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: store i32* undef, i32** @h, align 4
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store i32 addrspace(1)* undef, i32 addrspace(1)** undef
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; CHECK-NEXT: ret i32 addrspace(1)* undef
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;
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block1:
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store i32* undef, i32** @h, align 4
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%ptr = load i32*, i32** @h, align 4
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%z1 = addrspacecast i32* %ptr to i32 addrspace(1)*
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br label %block2
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block2:
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%z2 = addrspacecast i32* %ptr to i32 addrspace(1)*
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store i32 addrspace(1)* %z1, i32 addrspace(1)** undef
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ret i32 addrspace(1)* %z2
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}
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define i32 addrspace(1)* @addrspacecast_leader(i32** %arg.ptr) {
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; CHECK-LABEL: @addrspacecast_leader(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: [[LOAD0:%.*]] = load i32*, i32** [[ARG_PTR:%.*]]
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; CHECK-NEXT: [[Z1:%.*]] = addrspacecast i32* [[LOAD0]] to i32 addrspace(1)*
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store i32 addrspace(1)* [[Z1]], i32 addrspace(1)** undef
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; CHECK-NEXT: ret i32 addrspace(1)* [[Z1]]
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;
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block1:
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%load0 = load i32*, i32** %arg.ptr
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%z1 = addrspacecast i32* %load0 to i32 addrspace(1)*
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br label %block2
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block2:
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%load1 = load i32*, i32** %arg.ptr
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%z2 = addrspacecast i32* %load1 to i32 addrspace(1)*
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store i32 addrspace(1)* %z1, i32 addrspace(1)** undef
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ret i32 addrspace(1)* %z2
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}
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