55 lines
1.2 KiB
LLVM
55 lines
1.2 KiB
LLVM
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Test lowering of @llvm.frameaddress with packed-stack.
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; With back chain
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attributes #0 = { nounwind "packed-stack" "backchain" "use-soft-float"="true" }
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define i8* @fp0() #0 {
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entry:
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; CHECK-LABEL: fp0:
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; CHECK: la %r2, 152(%r15)
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; CHECK-NEXT: br %r14
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%0 = tail call i8* @llvm.frameaddress(i32 0)
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ret i8* %0
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}
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define i8* @fp0f() #0 {
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entry:
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; CHECK-LABEL: fp0f:
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; CHECK: lgr %r1, %r15
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; CHECK-NEXT: aghi %r15, -16
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; CHECK-NEXT: stg %r1, 152(%r15)
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; CHECK-NEXT: la %r2, 168(%r15)
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; CHECK-NEXT: aghi %r15, 16
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; CHECK-NEXT: br %r14
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%0 = alloca i64, align 8
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%1 = tail call i8* @llvm.frameaddress(i32 0)
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ret i8* %1
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}
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; Without back chain
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attributes #1 = { nounwind "packed-stack" }
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define i8* @fp1() #1 {
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entry:
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; CHECK-LABEL: fp1:
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; CHECK: lghi %r2, 0
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; CHECK-NEXT: br %r14
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%0 = tail call i8* @llvm.frameaddress(i32 0)
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ret i8* %0
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}
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define i8* @fp1f() #1 {
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entry:
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; CHECK-LABEL: fp1f:
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; CHECK: aghi %r15, -8
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; CHECK-NEXT: lghi %r2, 0
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; CHECK-NEXT: aghi %r15, 8
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; CHECK-NEXT: br %r14
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%0 = alloca i64, align 8
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%1 = tail call i8* @llvm.frameaddress(i32 0)
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ret i8* %1
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}
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declare i8* @llvm.frameaddress(i32) nounwind readnone
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