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62 lines
2.4 KiB
LLVM
62 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes='sroa<preserve-cfg>' -S | FileCheck %s --check-prefixes=CHECK,CHECK-PRESERVE-CFG
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; RUN: opt < %s -passes='sroa<modify-cfg>' -S | FileCheck %s --check-prefixes=CHECK,CHECK-MODIFY-CFG
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%i32x2 = type { [2 x i32] }
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; Note %arr is the union
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; union {
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; int i[2];
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; short s[4];
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; };
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define i16 @with_lifetime(i32 %a, i32 %b) #0 {
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; CHECK-LABEL: @with_lifetime(
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; CHECK-NEXT: [[ARR_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i32 [[A:%.*]] to i16
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; CHECK-NEXT: [[ARR_SROA_4_4_EXTRACT_TRUNC:%.*]] = trunc i32 [[B:%.*]] to i16
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; CHECK-NEXT: [[RET:%.*]] = add i16 [[ARR_SROA_0_0_EXTRACT_TRUNC]], [[ARR_SROA_4_4_EXTRACT_TRUNC]]
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; CHECK-NEXT: ret i16 [[RET]]
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;
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%arr = alloca %i32x2, align 4
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call void @llvm.lifetime.start.p0(ptr %arr)
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%p1 = getelementptr inbounds %i32x2, ptr %arr, i64 0, i32 0, i32 1
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store i32 %a, ptr %arr, align 4
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store i32 %b, ptr %p1, align 4
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%s0 = load i16, ptr %arr, align 4
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%s2 = load i16, ptr %p1, align 4
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%ret = add i16 %s0, %s2
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call void @llvm.lifetime.end.p0(ptr %arr)
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ret i16 %ret
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}
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define i16 @no_lifetime(i32 %a, i32 %b) #0 {
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; CHECK-LABEL: @no_lifetime(
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; CHECK-NEXT: [[ARR_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i32 [[A:%.*]] to i16
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; CHECK-NEXT: [[ARR_SROA_2_0_EXTRACT_SHIFT:%.*]] = lshr i32 [[A]], 16
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; CHECK-NEXT: [[ARR_SROA_2_0_EXTRACT_TRUNC:%.*]] = trunc i32 [[ARR_SROA_2_0_EXTRACT_SHIFT]] to i16
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; CHECK-NEXT: [[ARR_SROA_21_4_EXTRACT_TRUNC:%.*]] = trunc i32 [[B:%.*]] to i16
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; CHECK-NEXT: [[ARR_SROA_4_4_EXTRACT_SHIFT:%.*]] = lshr i32 [[B]], 16
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; CHECK-NEXT: [[ARR_SROA_4_4_EXTRACT_TRUNC:%.*]] = trunc i32 [[ARR_SROA_4_4_EXTRACT_SHIFT]] to i16
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; CHECK-NEXT: [[RET:%.*]] = add i16 [[ARR_SROA_0_0_EXTRACT_TRUNC]], [[ARR_SROA_21_4_EXTRACT_TRUNC]]
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; CHECK-NEXT: ret i16 [[RET]]
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;
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%arr = alloca %i32x2, align 4
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%p1 = getelementptr inbounds %i32x2, ptr %arr, i64 0, i32 0, i32 1
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store i32 %a, ptr %arr, align 4
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store i32 %b, ptr %p1, align 4
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%s0 = load i16, ptr %arr, align 4
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%s2 = load i16, ptr %p1, align 4
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%ret = add i16 %s0, %s2
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ret i16 %ret
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}
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declare void @llvm.lifetime.start.p0(ptr nocapture) #1
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declare void @llvm.lifetime.end.p0(ptr nocapture) #1
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attributes #0 = { alwaysinline nounwind }
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attributes #1 = { argmemonly nounwind }
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;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
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; CHECK-MODIFY-CFG: {{.*}}
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; CHECK-PRESERVE-CFG: {{.*}}
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