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https://github.com/c64scene-ar/llvm-6502.git
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12ad7cd730
Only handles a depth of zero (the same as FRAMEADDR) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198613 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
952 B
LLVM
47 lines
952 B
LLVM
; RUN: llc < %s -march=xcore | FileCheck %s
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declare i8* @llvm.frameaddress(i32) nounwind readnone
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define i8* @FA0() nounwind {
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entry:
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; CHECK-LABEL: FA0
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; CHECK: ldaw r0, sp[0]
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; CHECK-NEXT: retsp 0
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%0 = call i8* @llvm.frameaddress(i32 0)
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ret i8* %0
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}
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define i8* @FA1() nounwind {
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entry:
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; CHECK-LABEL: FA1
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; CHECK: entsp 100
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; CHECK-NEXT: ldaw r0, sp[0]
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; CHECK-NEXT: retsp 100
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%0 = alloca [100 x i32]
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%1 = call i8* @llvm.frameaddress(i32 0)
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ret i8* %1
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}
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declare i8* @llvm.returnaddress(i32) nounwind readnone
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define i8* @RA0() nounwind {
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entry:
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; CHECK-LABEL: RA0
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; CHECK: stw lr, sp[0]
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; CHECK-NEXT: ldw r0, sp[0]
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; CHECK-NEXT: ldw lr, sp[0]
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; CHECK-NEXT: retsp 0
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%0 = call i8* @llvm.returnaddress(i32 0)
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ret i8* %0
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}
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define i8* @RA1() nounwind {
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entry:
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; CHECK-LABEL: RA1
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; CHECK: entsp 100
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; CHECK-NEXT: ldw r0, sp[100]
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; CHECK-NEXT: retsp 100
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%0 = alloca [100 x i32]
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%1 = call i8* @llvm.returnaddress(i32 0)
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ret i8* %1
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}
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