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TheRock/compiler/amd-llvm/llvm/test/Transforms/GlobalOpt/calloc-promote.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

48 lines
1.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=globalopt -S < %s | FileCheck %s
@g = internal global ptr null, align 8
define signext i32 @f() local_unnamed_addr {
; CHECK-LABEL: @f(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g.body, i8 0, i64 4, i1 false)
; CHECK-NEXT: store i16 -1, ptr @g.body, align 2
; CHECK-NEXT: ret i32 0
;
entry:
%call = call ptr @calloc(i64 1, i64 4)
store ptr %call, ptr @g, align 8
store i16 -1, ptr %call
ret i32 0
}
define signext i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CALL:%.*]] = call signext i32 @f()
; CHECK-NEXT: call void @f1()
; CHECK-NEXT: store i32 1, ptr @g.body, align 4
; CHECK-NEXT: call void @f1()
; CHECK-NEXT: store i8 2, ptr @g.body, align 4
; CHECK-NEXT: call void @f1()
; CHECK-NEXT: [[RES:%.*]] = load i32, ptr @g.body, align 4
; CHECK-NEXT: ret i32 [[RES]]
;
entry:
%call = call signext i32 @f()
call void @f1()
%v0 = load ptr, ptr @g, align 8
store i32 1, ptr %v0, align 4
call void @f1()
%v1 = load ptr, ptr @g, align 8
store i8 2, ptr %v1, align 4
call void @f1()
%v2 = load ptr, ptr @g, align 8
%res = load i32, ptr %v2, align 4
ret i32 %res
}
declare noalias align 16 ptr @calloc(i64, i64) allockind("alloc,zeroed") allocsize(0,1)
declare void @f1()