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llvm-mirror/test/CodeGen/Generic/ForceStackAlign.ll

28 lines
645 B
LLVM

; Check that stack alignment can be forced. Individual targets should test their
; specific implementation details.
; RUN: llc < %s -stackrealign -stack-alignment=32 | FileCheck %s
; CHECK-LABEL: @f
; CHECK-LABEL: @g
define i32 @f(i8* %p) nounwind {
entry:
%0 = load i8, i8* %p
%conv = sext i8 %0 to i32
ret i32 %conv
}
define i64 @g(i32 %i) nounwind {
entry:
br label %if.then
if.then:
%0 = alloca i8, i32 %i
call void @llvm.memset.p0i8.i32(i8* %0, i8 0, i32 %i, i32 1, i1 false)
%call = call i32 @f(i8* %0)
%conv = sext i32 %call to i64
ret i64 %conv
}
declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i32, i1) nounwind