derek.holloway
7502bf64a4
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109 lines
3.5 KiB
LLVM
109 lines
3.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=newgvn < %s | FileCheck %s
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define ptr addrspace(1) @addrspacecast(ptr %ptr) {
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; CHECK-LABEL: @addrspacecast(
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; CHECK-NEXT: block1:
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; CHECK-NEXT: [[Z1:%.*]] = addrspacecast ptr [[PTR:%.*]] to ptr addrspace(1)
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store ptr addrspace(1) [[Z1]], ptr undef, align 8
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; CHECK-NEXT: ret ptr addrspace(1) [[Z1]]
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;
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block1:
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%z1 = addrspacecast ptr %ptr to ptr addrspace(1)
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br label %block2
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block2:
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%z2 = addrspacecast ptr %ptr to ptr addrspace(1)
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store ptr addrspace(1) %z1, ptr undef
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ret ptr 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 ptr addrspace(1) @addrspacecast_different_result_types(ptr %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 ptr [[PTR:%.*]] to ptr 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 ptr [[PTR]] to ptr addrspace(1)
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; CHECK-NEXT: store ptr addrspace(2) [[Z1]], ptr undef, align 8
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; CHECK-NEXT: ret ptr addrspace(1) [[Z2]]
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;
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block1:
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%z1 = addrspacecast ptr %ptr to ptr addrspace(2)
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br label %block2
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block2:
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%z2 = addrspacecast ptr %ptr to ptr addrspace(1)
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store ptr addrspace(2) %z1, ptr undef
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ret ptr addrspace(1) %z2
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}
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define ptr addrspace(1) @addrspacecast_simplify(ptr 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 ptr addrspace(1) [[PTR:%.*]] to ptr
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store ptr addrspace(1) [[PTR]], ptr undef, align 8
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; CHECK-NEXT: ret ptr addrspace(1) [[PTR]]
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;
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block1:
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%cast0 = addrspacecast ptr addrspace(1) %ptr to ptr
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%z1 = addrspacecast ptr %cast0 to ptr addrspace(1)
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br label %block2
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block2:
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%z2 = addrspacecast ptr %cast0 to ptr addrspace(1)
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store ptr addrspace(1) %z1, ptr undef
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ret ptr addrspace(1) %z2
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}
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@h = common local_unnamed_addr global ptr null, align 4
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define ptr 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 ptr undef, ptr @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 ptr addrspace(1) undef, ptr undef, align 8
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; CHECK-NEXT: ret ptr addrspace(1) undef
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;
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block1:
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store ptr undef, ptr @h, align 4
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%ptr = load ptr, ptr @h, align 4
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%z1 = addrspacecast ptr %ptr to ptr addrspace(1)
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br label %block2
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block2:
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%z2 = addrspacecast ptr %ptr to ptr addrspace(1)
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store ptr addrspace(1) %z1, ptr undef
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ret ptr addrspace(1) %z2
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}
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define ptr addrspace(1) @addrspacecast_leader(ptr %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 ptr, ptr [[ARG_PTR:%.*]], align 8
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; CHECK-NEXT: [[Z1:%.*]] = addrspacecast ptr [[LOAD0]] to ptr addrspace(1)
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; CHECK-NEXT: br label [[BLOCK2:%.*]]
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; CHECK: block2:
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; CHECK-NEXT: store ptr addrspace(1) [[Z1]], ptr undef, align 8
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; CHECK-NEXT: ret ptr addrspace(1) [[Z1]]
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;
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block1:
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%load0 = load ptr, ptr %arg.ptr
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%z1 = addrspacecast ptr %load0 to ptr addrspace(1)
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br label %block2
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block2:
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%load1 = load ptr, ptr %arg.ptr
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%z2 = addrspacecast ptr %load1 to ptr addrspace(1)
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store ptr addrspace(1) %z1, ptr undef
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ret ptr addrspace(1) %z2
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}
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