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98d41caf26
The variables MinGPR/MinG8R were not updated properly when resetting the offsets, which in the included testcase lead to saving the CR register in the same location as R30. This fixes another issue reported in PR26519. Differential Revision: https://reviews.llvm.org/D33017 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303257 91177308-0d34-0410-b5e6-96231b3b80d8
55 lines
1.6 KiB
LLVM
55 lines
1.6 KiB
LLVM
; RUN: llc -march=ppc64 -ppc-always-use-base-pointer < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC64
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; RUN: llc -march=ppc32 -ppc-always-use-base-pointer < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC32
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; RUN: llc -march=ppc32 -ppc-always-use-base-pointer -relocation-model pic < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC32PIC
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; CHECK-LABEL: fred:
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; Check for saving/restoring frame pointer (X31) and base pointer (X30)
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; on ppc64:
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; PPC64: std 31, -8(1)
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; PPC64: std 30, -16(1)
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; PPC64: ld 31, -8(1)
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; PPC64: ld 30, -16(1)
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; Check for saving/restoring frame pointer (R31) and base pointer (R30)
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; on ppc32:
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; PPC32: stwux 1, 1, 0
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; PPC32; addic 0, 0, -4
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; PPC32: stwx 31, 0, 0
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; PPC32: addic 0, 0, -4
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; PPC32: stwx 30, 0, 0
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; The restore sequence:
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; PPC32: lwz 31, 0(1)
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; PPC32: addic 30, 0, 8
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; PPC32: lwz 0, -4(31)
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; PPC32: lwz 30, -8(31)
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; PPC32: mr 1, 31
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; PPC32: mr 31, 0
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; Check for saving/restoring frame pointer (R31) and base pointer (R29)
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; on ppc32/pic. This is mostly the same as without pic, except that base
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; pointer is in R29.
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; PPC32PIC: stwux 1, 1, 0
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; PPC32PIC; addic 0, 0, -4
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; PPC32PIC: stwx 31, 0, 0
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; PPC32PIC: addic 0, 0, -8
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; PPC32PIC: stwx 29, 0, 0
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; The restore sequence:
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; PPC32PIC: lwz 31, 0(1)
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; PPC32PIC: addic 29, 0, 12
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; PPC32PIC: lwz 0, -4(31)
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; PPC32PIC: lwz 29, -12(31)
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; PPC32PIC: mr 1, 31
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; PPC32PIC: mr 31, 0
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target datalayout = "E-m:e-p:32:32-i64:64-n32"
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target triple = "powerpc-unknown-freebsd"
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define i64 @fred() local_unnamed_addr #0 {
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entry:
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ret i64 0
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}
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attributes #0 = { norecurse readnone nounwind sspstrong "no-frame-pointer-elim"="true" "target-cpu"="ppc" }
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