Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 33 insertions, 7 deletions

diff --git a/test/CodeGen/X86/fabs.ll b/test/CodeGen/X86/fabs.ll
index 9ded7e0..af1867f 100644
--- a/test/CodeGen/X86/fabs.ll
+++ b/test/CodeGen/X86/fabs.ll
@@ -1,28 +1,54 @@
 ; Make sure this testcase codegens to the fabs instruction, not a call to fabsf
-; RUN: llc < %s -march=x86 -mattr=-sse2,-sse3,-sse | grep fabs\$ | \
-; RUN:   count 2
-; RUN: llc < %s -march=x86 -mattr=-sse,-sse2,-sse3 -enable-unsafe-fp-math -enable-no-nans-fp-math | \
-; RUN:   grep fabs\$ | count 3
+; RUN: llc < %s -mtriple=i686-apple-macosx -mattr=-sse2,-sse3,-sse | FileCheck %s
+; RUN: llc < %s -mtriple=i686-apple-macosx -mattr=-sse,-sse2,-sse3 -enable-unsafe-fp-math -enable-no-nans-fp-math | FileCheck %s --check-prefix=UNSAFE
+; RUN: llc < %s -mtriple=x86_64-apple-macosx -O0 | FileCheck %s --check-prefix=NOOPT
 
 declare float @fabsf(float)
 
 declare x86_fp80 @fabsl(x86_fp80)
 
+; CHECK:  test1:
+; UNSAFE: test1:
+; NOOPT:  test1:
 define float @test1(float %X) {
-        %Y = call float @fabsf(float %X)
+        %Y = call float @fabsf(float %X) readnone
         ret float %Y
 }
+; CHECK:  {{^[ \t]+fabs$}}
+; UNSAFE: {{^[ \t]+fabs$}}
 
+; CHECK-NOT:  fabs
+; UNSAFE-NOT: fabs
+; NOOPT-NOT:  fabsf
+
+; CHECK:  test2:
+; UNSAFE: test2:
+; NOOPT:  test2:
 define double @test2(double %X) {
         %Y = fcmp oge double %X, -0.0
         %Z = fsub double -0.0, %X
         %Q = select i1 %Y, double %X, double %Z
         ret double %Q
 }
+; fabs is not used here.
+; CHECK-NOT:  fabs
+; NOOPT-NOT:  fabs
+
+; UNSAFE: {{^[ \t]+fabs$}}
 
+; UNSAFE-NOT: fabs
+
+; CHECK:  test3:
+; UNSAFE: test3:
+; NOOPT:  test3:
 define x86_fp80 @test3(x86_fp80 %X) {
-        %Y = call x86_fp80 @fabsl(x86_fp80 %X)
+        %Y = call x86_fp80 @fabsl(x86_fp80 %X) readnone
         ret x86_fp80 %Y
 }
+; CHECK:  {{^[ \t]+fabs$}}
+; UNSAFE: {{^[ \t]+fabs$}}
+; NOOPT:  {{^[ \t]+fabs$}}
 
-
+; CHECK-NOT:  fabs
+; UNSAFE-NOT: fabs
+; NOOPT-NOT:  fabs