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Diffstat (limited to 'test/CodeGen/PowerPC/save-bp.ll')
-rw-r--r-- | test/CodeGen/PowerPC/save-bp.ll | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/save-bp.ll b/test/CodeGen/PowerPC/save-bp.ll new file mode 100644 index 0000000000000..1c7e19a1d5cb3 --- /dev/null +++ b/test/CodeGen/PowerPC/save-bp.ll @@ -0,0 +1,54 @@ +; RUN: llc -march=ppc64 -ppc-always-use-base-pointer < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC64 +; RUN: llc -march=ppc32 -ppc-always-use-base-pointer < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC32 +; RUN: llc -march=ppc32 -ppc-always-use-base-pointer -relocation-model pic < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC32PIC + +; CHECK-LABEL: fred: + +; Check for saving/restoring frame pointer (X31) and base pointer (X30) +; on ppc64: +; PPC64: std 31, -8(1) +; PPC64: std 30, -16(1) +; PPC64: ld 31, -8(1) +; PPC64: ld 30, -16(1) + +; Check for saving/restoring frame pointer (R31) and base pointer (R30) +; on ppc32: +; PPC32: stwux 1, 1, 0 +; PPC32; addic 0, 0, -4 +; PPC32: stwx 31, 0, 0 +; PPC32: addic 0, 0, -4 +; PPC32: stwx 30, 0, 0 +; The restore sequence: +; PPC32: lwz 31, 0(1) +; PPC32: addic 30, 0, 8 +; PPC32: lwz 0, -4(31) +; PPC32: lwz 30, -8(31) +; PPC32: mr 1, 31 +; PPC32: mr 31, 0 + +; Check for saving/restoring frame pointer (R31) and base pointer (R29) +; on ppc32/pic. This is mostly the same as without pic, except that base +; pointer is in R29. +; PPC32PIC: stwux 1, 1, 0 +; PPC32PIC; addic 0, 0, -4 +; PPC32PIC: stwx 31, 0, 0 +; PPC32PIC: addic 0, 0, -8 +; PPC32PIC: stwx 29, 0, 0 +; The restore sequence: +; PPC32PIC: lwz 31, 0(1) +; PPC32PIC: addic 29, 0, 12 +; PPC32PIC: lwz 0, -4(31) +; PPC32PIC: lwz 29, -12(31) +; PPC32PIC: mr 1, 31 +; PPC32PIC: mr 31, 0 + + +target datalayout = "E-m:e-p:32:32-i64:64-n32" +target triple = "powerpc-unknown-freebsd" + +define i64 @fred() local_unnamed_addr #0 { +entry: + ret i64 0 +} + +attributes #0 = { norecurse readnone nounwind sspstrong "no-frame-pointer-elim"="true" "target-cpu"="ppc" } |