[X86] Fix the AllRegs AVX calling convention.

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268983 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td
index 263a207a66728bf2099ba8c79f594aa061057a5c..47e581fa1cde8c54421e32454aa3ec6fae12b615 100644 (file)
--- a/lib/Target/X86/X86CallingConv.td
+++ b/lib/Target/X86/X86CallingConv.td
@@ -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

diff --git a/test/CodeGen/X86/x86-interrupt_vzeroupper.ll b/test/CodeGen/X86/x86-interrupt_vzeroupper.ll
index ab9f168d9727e8464745088a39d8a7270676bf04..b735ae82bd526d292820c8866c67b43814720e65 100644 (file)
--- a/test/CodeGen/X86/x86-interrupt_vzeroupper.ll
+++ b/test/CodeGen/X86/x86-interrupt_vzeroupper.ll
@@ -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