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llvm-mirror/test/CodeGen/PowerPC/ppc-prologue.ll
Dale Johannesen 5809ff0e58 Do not store R31 into the caller's link area on PPC.
This violates the ABI (that area is "reserved"), and
while it is safe if all code is generated with current
compilers, there is some very old code around that uses
that slot for something else, and breaks if it is stored
into.  Adjust testcases looking for current behavior.
I've verified that the stack frame size is right in all
testcases, whether it changed or not.  7311323.

llvm-svn: 89811
2009-11-24 22:59:02 +00:00

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1.0 KiB
LLVM

; RUN: llc < %s -mtriple=powerpc-apple-darwin8 -disable-fp-elim | FileCheck %s
define i32 @_Z4funci(i32 %a) ssp {
; CHECK: mflr r0
; CHECK-NEXT: stw r31, -4(r1)
; CHECK-NEXT: stw r0, 8(r1)
; CHECK-NEXT: stwu r1, -80(r1)
; CHECK-NEXT: Llabel1:
; CHECK-NEXT: mr r31, r1
; CHECK-NEXT: Llabel2:
entry:
%a_addr = alloca i32 ; <i32*> [#uses=2]
%retval = alloca i32 ; <i32*> [#uses=2]
%0 = alloca i32 ; <i32*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 %a, i32* %a_addr
%1 = call i32 @_Z3barPi(i32* %a_addr) ; <i32> [#uses=1]
store i32 %1, i32* %0, align 4
%2 = load i32* %0, align 4 ; <i32> [#uses=1]
store i32 %2, i32* %retval, align 4
br label %return
return: ; preds = %entry
%retval1 = load i32* %retval ; <i32> [#uses=1]
ret i32 %retval1
}
declare i32 @_Z3barPi(i32*)