[llvm] r313964 - [X86] Updating the test case for FMF propagation.

[Jatin Bhateja via llvm-commits]

Author: jbhateja
Date: Thu Sep 21 22:48:20 2017
New Revision: 313964

URL: http://llvm.org/viewvc/llvm-project?rev=313964&view=rev
Log:
[X86] Updating the test case for FMF propagation.

Differential Revision: https://reviews.llvm.org/D38163

Modified:
    llvm/trunk/test/CodeGen/X86/fmf-flags.ll

Modified: llvm/trunk/test/CodeGen/X86/fmf-flags.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/fmf-flags.ll?rev=313964&r1=313963&r2=313964&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/fmf-flags.ll (original)
+++ llvm/trunk/test/CodeGen/X86/fmf-flags.ll Thu Sep 21 22:48:20 2017
@@ -48,12 +48,15 @@ define float @fast_fmuladd_opts(float %a
 
 ; The multiply is strict.
 
+ at mul1 = common global double 0.000000e+00, align 4
+
 define double @not_so_fast_mul_add(double %x) {
 ; X64-LABEL: not_so_fast_mul_add:
 ; X64:       # BB#0:
 ; X64-NEXT:    movsd {{.*#+}} xmm1 = mem[0],zero
 ; X64-NEXT:    mulsd %xmm0, %xmm1
 ; X64-NEXT:    addsd %xmm1, %xmm0
+; X64-NEXT:    movsd %xmm1, {{.*}}(%rip)
 ; X64-NEXT:    retq
 ;
 ; X86-LABEL: not_so_fast_mul_add:
@@ -61,21 +64,26 @@ define double @not_so_fast_mul_add(doubl
 ; X86-NEXT:    fldl {{[0-9]+}}(%esp)
 ; X86-NEXT:    fld %st(0)
 ; X86-NEXT:    fmull {{\.LCPI.*}}
-; X86-NEXT:    faddp %st(1)
+; X86-NEXT:    fadd %st(0), %st(1)
+; X86-NEXT:    fstpl mul1
 ; X86-NEXT:    retl
   %m = fmul double %x, 4.2
   %a = fadd fast double %m, %x
+  store double %m, double* @mul1, align 4
   ret double %a
 }
 
 ; The sqrt is strict.
 
+ at sqrt1 = common global float 0.000000e+00, align 4
+
 define float @not_so_fast_recip_sqrt(float %x) {
 ; X64-LABEL: not_so_fast_recip_sqrt:
 ; X64:       # BB#0:
 ; X64-NEXT:    sqrtss %xmm0, %xmm1
 ; X64-NEXT:    movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
 ; X64-NEXT:    divss %xmm1, %xmm0
+; X64-NEXT:    movss %xmm1, {{.*}}(%rip)
 ; X64-NEXT:    retq
 ;
 ; X86-LABEL: not_so_fast_recip_sqrt:
@@ -83,10 +91,14 @@ define float @not_so_fast_recip_sqrt(flo
 ; X86-NEXT:    flds {{[0-9]+}}(%esp)
 ; X86-NEXT:    fsqrt
 ; X86-NEXT:    fld1
-; X86-NEXT:    fdivp %st(1)
+; X86-NEXT:    fdiv %st(1)
+; X86-NEXT:    fxch %st(1)
+; X86-NEXT:    fstps sqrt1
 ; X86-NEXT:    retl
   %y = call float @llvm.sqrt.f32(float %x)
   %z = fdiv fast float 1.0, %y
+  store float %y, float* @sqrt1, align 4
+  %ret = fadd float %z , 14.5
   ret float %z
 }