45 lines
1.5 KiB
LLVM
45 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -mtriple=amdgcn-- -S -passes='lto<O2>' < %s | FileCheck %s
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target triple = "amdgcn-amd-amdhsa"
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; REQUIRES: amdgpu-registered-target
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; We use the ExpandVariadics pass to lower variadic functions so they can be
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; inlined.
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define i32 @foo() {
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; CHECK-LABEL: define i32 @foo(
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; CHECK-SAME: ) local_unnamed_addr #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: ret i32 6
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;
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entry:
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%call = tail call i32 (i32, ...) @vararg(i32 poison, i32 noundef 1, i32 noundef 2, i32 noundef 3)
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ret i32 %call
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}
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define internal i32 @vararg(i32 %first, ...) {
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entry:
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%vlist.alloca = alloca ptr, align 8, addrspace(5)
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%vlist = addrspacecast ptr addrspace(5) %vlist.alloca to ptr
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call void @llvm.va_start.p0(ptr %vlist)
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%vlist.promoted = load ptr, ptr %vlist, align 8
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%argp.a = getelementptr inbounds i8, ptr %vlist.promoted, i64 4
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store ptr %argp.a, ptr %vlist, align 8
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%a = load i32, ptr %vlist.promoted, align 4
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%argp.b = getelementptr inbounds i8, ptr %vlist.promoted, i64 8
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store ptr %argp.b, ptr %vlist, align 8
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%b = load i32, ptr %argp.a, align 4
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%sum = add nsw i32 %b, %a
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%argp.c = getelementptr inbounds i8, ptr %vlist.promoted, i64 12
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store ptr %argp.c, ptr %vlist, align 8
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%c = load i32, ptr %argp.b, align 4
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%ret = add nsw i32 %c, %sum
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call void @llvm.va_end.p0(ptr %vlist)
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ret i32 %ret
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}
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declare void @llvm.va_start.p0(ptr)
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declare void @llvm.va_end.p0(ptr)
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