llvm/test/CodeGen/PowerPC/Frames-large.ll
Hal Finkel 2e95afa04c Cleanup stack/frame register define/kill states. This fixes two bugs:
1. The ST*UX instructions that store and update the stack pointer did not set define/kill on R1. This became a problem when I activated post-RA scheduling (and had incorrectly adjusted the Frames-large test).

2. eliminateFrameIndex did not kill its scavenged temporary register, and this could cause the scavenger to exhaust all available registers (and its emergency spill slot) when there were a lot of CR values to spill. The 2010-02-12-saveCR test has been adjusted to check for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147359 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-30 00:34:00 +00:00

56 lines
1.4 KiB
LLVM

; RUN: llvm-as < %s > %t.bc
; RUN: llc < %t.bc -march=ppc32 | FileCheck %s -check-prefix=PPC32-NOFP
; RUN: llc < %t.bc -march=ppc32 -disable-fp-elim | FileCheck %s -check-prefix=PPC32-FP
; RUN: llc < %t.bc -march=ppc64 | FileCheck %s -check-prefix=PPC64-NOFP
; RUN: llc < %t.bc -march=ppc64 -disable-fp-elim | FileCheck %s -check-prefix=PPC64-FP
target triple = "powerpc-apple-darwin8"
define i32* @f1() nounwind {
%tmp = alloca i32, i32 8191 ; <i32*> [#uses=1]
ret i32* %tmp
}
; PPC32-NOFP: _f1:
; PPC32-NOFP: lis r0, -1
; PPC32-NOFP: ori r0, r0, 32704
; PPC32-NOFP: stwux r1, r1, r0
; PPC32-NOFP: addi r3, r1, 68
; PPC32-NOFP: lwz r1, 0(r1)
; PPC32-NOFP: blr
; PPC32-FP: _f1:
; PPC32-FP: lis r0, -1
; PPC32-FP: stw r31, -4(r1)
; PPC32-FP: ori r0, r0, 32704
; PPC32-FP: stwux r1, r1, r0
; PPC32-FP: mr r31, r1
; PPC32-FP: addi r3, r31, 64
; PPC32-FP: lwz r1, 0(r1)
; PPC32-FP: lwz r31, -4(r1)
; PPC32-FP: blr
; PPC64-NOFP: _f1:
; PPC64-NOFP: lis r0, -1
; PPC64-NOFP: ori r0, r0, 32656
; PPC64-NOFP: stdux r1, r1, r0
; PPC64-NOFP: addi r3, r1, 116
; PPC64-NOFP: ld r1, 0(r1)
; PPC64-NOFP: blr
; PPC64-FP: _f1:
; PPC64-FP: lis r0, -1
; PPC64-FP: std r31, -8(r1)
; PPC64-FP: ori r0, r0, 32640
; PPC64-FP: stdux r1, r1, r0
; PPC64-FP: mr r31, r1
; PPC64-FP: addi r3, r31, 124
; PPC64-FP: ld r1, 0(r1)
; PPC64-FP: ld r31, -8(r1)
; PPC64-FP: blr