diff options
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/2012-08-28-UnsafeMathCrash.ll | 20 |
2 files changed, 21 insertions, 1 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index 52da79a..c834b90 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -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>, diff --git a/test/CodeGen/X86/2012-08-28-UnsafeMathCrash.ll b/test/CodeGen/X86/2012-08-28-UnsafeMathCrash.ll new file mode 100644 index 0000000..6ebbb2e --- /dev/null +++ b/test/CodeGen/X86/2012-08-28-UnsafeMathCrash.ll @@ -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 +} |