1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/fmadd1.ll b/test/CodeGen/Mips/fmadd1.ll
index 6768ed6..a9a8e21 100644
--- a/test/CodeGen/Mips/fmadd1.ll
+++ b/test/CodeGen/Mips/fmadd1.ll
@@ -1,3 +1,10 @@
+; Check that madd.[ds], msub.[ds], nmadd.[ds], and nmsub.[ds] are supported
+; correctly.
+; The spec for nmadd.[ds], and nmsub.[ds] does not state that they obey the
+; the Has2008 and ABS2008 configuration bits which govern the conformance to
+; IEEE 754 (1985) and IEEE 754 (2008). These instructions are therefore only
+; available when -enable-no-nans-fp-math is given.
+
 ; RUN: llc < %s -march=mipsel -mcpu=mips32r2 -enable-no-nans-fp-math | FileCheck %s -check-prefix=32R2 -check-prefix=CHECK
 ; RUN: llc < %s -march=mips64el -mcpu=mips64r2 -mattr=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefix=64R2 -check-prefix=CHECK
 ; RUN: llc < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=32R2NAN -check-prefix=CHECK
@@ -5,6 +12,7 @@
 
 define float @FOO0float(float %a, float %b, float %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO0float:
 ; CHECK: madd.s 
   %mul = fmul float %a, %b
   %add = fadd float %mul, %c
@@ -14,6 +22,7 @@ entry:
 
 define float @FOO1float(float %a, float %b, float %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO1float:
 ; CHECK: msub.s 
   %mul = fmul float %a, %b
   %sub = fsub float %mul, %c
@@ -23,6 +32,7 @@ entry:
 
 define float @FOO2float(float %a, float %b, float %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO2float:
 ; 32R2: nmadd.s 
 ; 64R2: nmadd.s 
 ; 32R2NAN: madd.s 
@@ -35,6 +45,7 @@ entry:
 
 define float @FOO3float(float %a, float %b, float %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO3float:
 ; 32R2: nmsub.s 
 ; 64R2: nmsub.s 
 ; 32R2NAN: msub.s 
@@ -47,6 +58,7 @@ entry:
 
 define double @FOO10double(double %a, double %b, double %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO10double:
 ; CHECK: madd.d
   %mul = fmul double %a, %b
   %add = fadd double %mul, %c
@@ -56,6 +68,7 @@ entry:
 
 define double @FOO11double(double %a, double %b, double %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO11double:
 ; CHECK: msub.d
   %mul = fmul double %a, %b
   %sub = fsub double %mul, %c
@@ -65,6 +78,7 @@ entry:
 
 define double @FOO12double(double %a, double %b, double %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO12double:
 ; 32R2: nmadd.d 
 ; 64R2: nmadd.d 
 ; 32R2NAN: madd.d 
@@ -77,6 +91,7 @@ entry:
 
 define double @FOO13double(double %a, double %b, double %c) nounwind readnone {
 entry:
+; CHECK-LABEL: FOO13double:
 ; 32R2: nmsub.d 
 ; 64R2: nmsub.d 
 ; 32R2NAN: msub.d