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If a function needs a frame pointer, but r11 (aka fp) has not been used,

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remove it from the list of unspilled registers. Otherwise the following
attempt to keep the stack aligned by picking an extra GPR register to
spill will not work as it picks up r11.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208129 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger
2014-05-06 20:43:01 +00:00
parent d474181920
commit b84f890bc3
6 changed files with 42 additions and 36 deletions
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4
test/CodeGen/ARM/segmented-stacks-dynamic.ll
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@@ -29,7 +29,7 @@ false:
; ARM-linux-NEXT: cmp r4, r5
; ARM-linux-NEXT: blo .LBB0_2
; ARM-linux: mov r4, #24
; ARM-linux: mov r4, #16
; ARM-linux-NEXT: mov r5, #0
; ARM-linux-NEXT: stmdb sp!, {lr}
; ARM-linux-NEXT: bl __morestack
@@ -49,7 +49,7 @@ false:
; ARM-android-NEXT: cmp r4, r5
; ARM-android-NEXT: blo .LBB0_2
; ARM-android: mov r4, #24
; ARM-android: mov r4, #16
; ARM-android-NEXT: mov r5, #0
; ARM-android-NEXT: stmdb sp!, {lr}
; ARM-android-NEXT: bl __morestack