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llvm-project/llvm/test/CodeGen/PowerPC/2010-05-03-retaddr1.ll

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These tests no longer require linear scan because reserved register coalescing is now universal. llvm-svn: 128936
2011-04-06 05:40:41 +08:00
; RUN: llc < %s -march=ppc32 -mtriple=powerpc-apple-darwin -mcpu=g5 | FileCheck %s
; RUN: llc < %s -march=ppc32 -mtriple=powerpc-apple-darwin -mcpu=g5 -regalloc=basic | FileCheck %s
Implement builtin_return_address(x) and builtin_frame_address(x) on PPC for x!=0. 7624113. llvm-svn: 102972
2010-05-04 06:59:34 +08:00
declare i8* @llvm.frameaddress(i32) nounwind readnone
define i8* @g2() nounwind readnone {
entry:
; CHECK: _g2:
; CHECK: lwz r3, 0(r1)
%0 = tail call i8* @llvm.frameaddress(i32 1) ; <i8*> [#uses=1]
ret i8* %0
}
declare i8* @llvm.returnaddress(i32) nounwind readnone
define i8* @g() nounwind readnone {
entry:
; CHECK: _g:
; CHECK: mflr r0
; CHECK: stw r0, 8(r1)
Don't reserve R2 on Darwin/PPC Now that only the register-scavenger version of the CR spilling code remains, we no longer need the Darwin R2 hack. Darwin can use R0 as a spare register in any case where the System V ABI uses it (R0 is special architecturally, and so is reserved under all common ABIs). A few test cases needed to be updated to reflect the register-allocation changes. llvm-svn: 176868
2013-03-12 23:18:14 +08:00
; CHECK: lwz r2, 0(r1)
; CHECK: lwz r3, 8(r2)
Implement builtin_return_address(x) and builtin_frame_address(x) on PPC for x!=0. 7624113. llvm-svn: 102972
2010-05-04 06:59:34 +08:00
%0 = tail call i8* @llvm.returnaddress(i32 1) ; <i8*> [#uses=1]
ret i8* %0
}