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The commutative flag is already correctly set within the multiclass. If we set

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it here, then a 'register-memory' version would wrongly get the commutative
flag.
<rdar://problem/12180135>

llvm-svn: 162741
This commit is contained in:
Bill Wendling 2012-08-28 07:36:46 +00:00
parent 803047a9bb
commit 6488dc22bb
2 changed files with 21 additions and 1 deletions
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2
lib/Target/X86/X86InstrSSE.td
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@ -2927,7 +2927,7 @@ let Constraints = "$src1 = $dst" in {
}
}
let isCommutable = 1, isCodeGenOnly = 1 in {
let isCodeGenOnly = 1 in {
defm VMAXC: basic_sse12_fp_binop_s<0x5F, "max", X86fmaxc, SSE_ALU_ITINS_S, 0>,
VEX_4V, VEX_LIG;
defm VMAXC: basic_sse12_fp_binop_p<0x5F, "max", X86fmaxc, SSE_ALU_ITINS_P, 0>,

20
test/CodeGen/X86/2012-08-28-UnsafeMathCrash.ll Normal file
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@ -0,0 +1,20 @@
; RUN: llc < %s -enable-unsafe-fp-math
; <rdar://problem/12180135>
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-n8:16:32-S128"
target triple = "i386-apple-macosx10.8.0"
define i32 @foo(float %mean) nounwind readnone ssp align 2 {
entry:
%cmp = fcmp olt float %mean, -3.000000e+00
%f.0 = select i1 %cmp, float -3.000000e+00, float %mean
%cmp2 = fcmp ult float %f.0, 3.000000e+00
%f.1 = select i1 %cmp2, float %f.0, float 0x4007EB8520000000
%add = fadd float %f.1, 3.000000e+00
%div = fdiv float %add, 2.343750e-02
%0 = fpext float %div to double
%conv = select i1 undef, double 2.550000e+02, double %0
%add8 = fadd double %conv, 5.000000e-01
%conv9 = fptosi double %add8 to i32
%.conv9 = select i1 undef, i32 255, i32 %conv9
ret i32 %.conv9
}