derek.holloway
7502bf64a4
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91 lines
3.1 KiB
LLVM
91 lines
3.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
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; RUN: opt -S -passes=gvn < %s | FileCheck %s
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; PR13694
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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declare noalias ptr @malloc(i64) nounwind allockind("alloc,uninitialized") allocsize(0)
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define noalias ptr @test1() nounwind uwtable ssp {
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; CHECK-LABEL: define noalias ptr @test1(
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; CHECK-SAME: ) #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[CALL:%.*]] = tail call ptr @malloc(i64 100) #[[ATTR2:[0-9]+]]
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; CHECK-NEXT: br i1 undef, label %[[IF_END:.*]], label %[[IF_THEN:.*]]
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; CHECK: [[IF_THEN]]:
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; CHECK-NEXT: store i8 0, ptr [[CALL]], align 1
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; CHECK-NEXT: br label %[[IF_END]]
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; CHECK: [[IF_END]]:
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; CHECK-NEXT: ret ptr [[CALL]]
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;
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entry:
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%call = tail call ptr @malloc(i64 100) nounwind
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%0 = load i8, ptr %call, align 1
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%tobool = icmp eq i8 %0, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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store i8 0, ptr %call, align 1
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br label %if.end
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if.end: ; preds = %if.then, %entry
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ret ptr %call
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}
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declare noalias ptr @_Znwm(i64) nounwind
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define noalias ptr @test2() nounwind uwtable ssp {
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; CHECK-LABEL: define noalias ptr @test2(
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; CHECK-SAME: ) #[[ATTR1]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[CALL:%.*]] = tail call ptr @_Znwm(i64 100) #[[ATTR2]]
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; CHECK-NEXT: br i1 undef, label %[[IF_END:.*]], label %[[IF_THEN:.*]]
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; CHECK: [[IF_THEN]]:
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; CHECK-NEXT: store i8 0, ptr [[CALL]], align 1
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; CHECK-NEXT: br label %[[IF_END]]
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; CHECK: [[IF_END]]:
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; CHECK-NEXT: ret ptr [[CALL]]
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;
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entry:
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%call = tail call ptr @_Znwm(i64 100) nounwind
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%0 = load i8, ptr %call, align 1
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%tobool = icmp eq i8 %0, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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store i8 0, ptr %call, align 1
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br label %if.end
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if.end: ; preds = %if.then, %entry
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ret ptr %call
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}
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declare noalias ptr @aligned_alloc(i64 allocalign, i64) nounwind allockind("alloc,uninitialized,aligned") allocsize(1)
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define noalias ptr @test3() nounwind uwtable ssp {
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; CHECK-LABEL: define noalias ptr @test3(
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; CHECK-SAME: ) #[[ATTR1]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[CALL:%.*]] = tail call ptr @aligned_alloc(i64 256, i64 32) #[[ATTR2]]
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; CHECK-NEXT: br i1 undef, label %[[IF_END:.*]], label %[[IF_THEN:.*]]
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; CHECK: [[IF_THEN]]:
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; CHECK-NEXT: store i8 0, ptr [[CALL]], align 1
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; CHECK-NEXT: br label %[[IF_END]]
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; CHECK: [[IF_END]]:
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; CHECK-NEXT: ret ptr [[CALL]]
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;
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entry:
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%call = tail call ptr @aligned_alloc(i64 256, i64 32) nounwind
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%0 = load i8, ptr %call, align 32
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%tobool = icmp eq i8 %0, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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store i8 0, ptr %call, align 1
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br label %if.end
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if.end: ; preds = %if.then, %entry
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ret ptr %call
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}
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