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7c9c6ed761
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
835 B
LLVM
37 lines
835 B
LLVM
; RUN: llc -mtriple=x86_64-windows -show-mc-encoding < %s | FileCheck %s
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; The Win64 ABI wants tail jmps to use a REX_W prefix so it can distinguish
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; in-function jumps from function exiting jumps.
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define void @tail_jmp_reg(i32, i32, void ()* %fptr) {
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tail call void ()* %fptr()
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ret void
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}
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; Check that we merge the REX prefixes into 0x49 instead of 0x48, 0x41.
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; CHECK-LABEL: tail_jmp_reg:
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; CHECK: rex64 jmpq *%r8
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; CHECK: encoding: [0x49,0xff,0xe0]
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declare void @tail_tgt()
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define void @tail_jmp_imm() {
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tail call void @tail_tgt()
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ret void
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}
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; CHECK-LABEL: tail_jmp_imm:
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; CHECK: rex64 jmp tail_tgt
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@g_fptr = global void ()* @tail_tgt
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define void @tail_jmp_mem() {
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%fptr = load void ()*, void ()** @g_fptr
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tail call void ()* %fptr()
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ret void
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}
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; CHECK-LABEL: tail_jmp_mem:
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; CHECK: rex64 jmpq *g_fptr(%rip)
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