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[X86] Fix the AllRegs AVX calling convention.

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We used to list registers that were not in the AVX space. In other
words, we were pushing registers that the ISA cannot encode
(YMM16-YMM31).

This is part of llvm.org/PR27481.

llvm-svn: 268983
This commit is contained in:
Quentin Colombet 2016-05-09 22:37:05 +00:00
parent 279f051ad7
commit 1cf0e63b3f
2 changed files with 2 additions and 2 deletions
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2
lib/Target/X86/X86CallingConv.td
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@ -897,7 +897,7 @@ def CSR_32_AllRegs_SSE : CalleeSavedRegs<(add CSR_32_AllRegs,
def CSR_64_AllRegs : CalleeSavedRegs<(add CSR_64_MostRegs, RAX, RSP,
(sequence "XMM%u", 16, 31))>;
def CSR_64_AllRegs_AVX : CalleeSavedRegs<(sub (add CSR_64_MostRegs, RAX, RSP,
(sequence "YMM%u", 0, 31)),
(sequence "YMM%u", 0, 15)),
(sequence "XMM%u", 0, 15))>;
// Standard C + YMM6-15

2
test/CodeGen/X86/x86-interrupt_vzeroupper.ll
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@ -1,4 +1,4 @@
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown -mattr=+avx < %s | FileCheck %s
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Checks that interrupt handler code does not call "vzeroupper" instruction