26 lines
779 B
LLVM
26 lines
779 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -passes=newgvn -S | FileCheck %s
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%t = type { i32 }
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declare void @test1f(ptr)
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define void @test1(ptr noalias %stuff ) {
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; CHECK-LABEL: define void @test1(
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; CHECK-SAME: ptr noalias [[STUFF:%.*]]) {
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; CHECK-NEXT: [[BEFORE:%.*]] = load i32, ptr [[STUFF]], align 4
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; CHECK-NEXT: call void @test1f(ptr null)
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; CHECK-NEXT: [[SUM:%.*]] = add i32 [[BEFORE]], [[BEFORE]]
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; CHECK-NEXT: store i32 [[SUM]], ptr [[STUFF]], align 4
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; CHECK-NEXT: ret void
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;
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%before = load i32, ptr %stuff
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call void @test1f(ptr null)
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%after = load i32, ptr %stuff ; <--- This should be a dead load
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%sum = add i32 %before, %after
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store i32 %sum, ptr %stuff
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ret void
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}
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