26 lines
711 B
LLVM
26 lines
711 B
LLVM
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; Test the stackrestore builtin.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare i8 *@llvm.stacksave()
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declare void @llvm.stackrestore(i8 *)
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; we should use a frame pointer and tear down the frame based on %r11
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; rather than %r15.
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define void @f1(i32 %count1, i32 %count2) {
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; CHECK-LABEL: f1:
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; CHECK: stmg %r11, %r15, 88(%r15)
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; CHECK: aghi %r15, -160
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; CHECK: lgr %r11, %r15
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; CHECK: lgr %r15, %r{{[0-5]}}
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; CHECK: lmg %r11, %r15, 248(%r11)
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; CHECK: br %r14
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%src = call i8 *@llvm.stacksave()
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%array1 = alloca i8, i32 %count1
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store volatile i8 0, i8 *%array1
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call void @llvm.stackrestore(i8 *%src)
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%array2 = alloca i8, i32 %count2
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store volatile i8 0, i8 *%array2
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ret void
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}
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