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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
64 lines
2.0 KiB
LLVM
64 lines
2.0 KiB
LLVM
; RUN: llc < %s -relocation-model=static -mcpu=yonah | FileCheck %s
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; The double argument is at 4(esp) which is 16-byte aligned, but we
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; are required to read in extra bytes of memory in order to fold the
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; load. Bad Things may happen when reading/processing undefined bytes,
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; so don't fold the load.
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; PR22371 / http://reviews.llvm.org/D7474
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i686-apple-darwin8"
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@G = external global double
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define void @test({ double, double }* byval %z, double* %P) nounwind {
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entry:
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%tmp3 = load double, double* @G, align 16 ; <double> [#uses=1]
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%tmp4 = tail call double @fabs( double %tmp3 ) readnone ; <double> [#uses=1]
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store volatile double %tmp4, double* %P
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%tmp = getelementptr { double, double }, { double, double }* %z, i32 0, i32 0 ; <double*> [#uses=1]
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%tmp1 = load volatile double, double* %tmp, align 8 ; <double> [#uses=1]
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%tmp2 = tail call double @fabs( double %tmp1 ) readnone ; <double> [#uses=1]
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%tmp6 = fadd double %tmp4, %tmp2 ; <double> [#uses=1]
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store volatile double %tmp6, double* %P, align 8
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ret void
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; CHECK-LABEL: test:
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; CHECK: movsd {{.*}}G, %xmm{{.*}}
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; CHECK: andpd %xmm{{.*}}, %xmm{{.*}}
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; CHECK: movsd 4(%esp), %xmm{{.*}}
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; CHECK: andpd %xmm{{.*}}, %xmm{{.*}}
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}
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define void @test2() alignstack(16) nounwind {
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entry:
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; CHECK-LABEL: test2:
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; CHECK: andl{{.*}}$-16, %esp
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ret void
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}
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; Use a call to force a spill.
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define <2 x double> @test3(<2 x double> %x, <2 x double> %y) alignstack(32) nounwind {
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entry:
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; CHECK-LABEL: test3:
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; CHECK: andl{{.*}}$-32, %esp
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call void @test2()
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%A = fmul <2 x double> %x, %y
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ret <2 x double> %A
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}
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declare double @fabs(double)
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; The pointer is already known aligned, so and x,-16 is eliminable.
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define i32 @test4() nounwind {
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entry:
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%buffer = alloca [2048 x i8], align 16
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%0 = ptrtoint [2048 x i8]* %buffer to i32
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%and = and i32 %0, -16
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ret i32 %and
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; CHECK-LABEL: test4:
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; CHECK-NOT: and
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; CHECK: ret
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}
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