llvm/test/CodeGen/X86/2011-06-03-x87chain.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
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
2015-02-27 21:17:42 +00:00

50 lines
1.5 KiB
LLVM

; RUN: llc < %s -mcpu=generic -march=x86 -mattr=+sse | FileCheck %s
define float @chainfail1(i64* nocapture %a, i64* nocapture %b, i32 %x, i32 %y, float* nocapture %f) nounwind uwtable noinline ssp {
entry:
%tmp1 = load i64, i64* %a, align 8
; Insure x87 ops are properly chained, order preserved.
; CHECK: fildll
%conv = sitofp i64 %tmp1 to float
; CHECK: fstps
store float %conv, float* %f, align 4
; CHECK: idivl
%div = sdiv i32 %x, %y
%conv5 = sext i32 %div to i64
store i64 %conv5, i64* %b, align 8
ret float %conv
}
define float @chainfail2(i64* nocapture %a, i64* nocapture %b, i32 %x, i32 %y, float* nocapture %f) nounwind uwtable noinline ssp {
entry:
; CHECK: movl $0,
store i64 0, i64* %b, align 8
%mul = mul nsw i32 %y, %x
%sub = add nsw i32 %mul, -1
%idxprom = sext i32 %sub to i64
%arrayidx = getelementptr inbounds i64, i64* %a, i64 %idxprom
%tmp4 = load i64, i64* %arrayidx, align 8
; CHECK: fildll
%conv = sitofp i64 %tmp4 to float
store float %conv, float* %f, align 4
ret float %conv
}
define void @PR17495() {
entry:
br i1 undef, label %while.end, label %while.body
while.body: ; preds = %while.body, %entry
%x.1.copyload = load i24, i24* undef, align 1
%conv = sitofp i24 %x.1.copyload to float
%div = fmul float %conv, 0x3E80000000000000
store float %div, float* undef, align 4
br i1 false, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
ret void
; CHECK-LABEL: @PR17495
; CHECK-NOT: fildll
}