[FPEnv][Clang][Driver] Failing tests are now expected failures only on PowerPC

Mark these tests as only failing on PowerPC. Avoids unexpected passes on
other bots.

Fingers crossed.

Differential Revision: https://reviews.llvm.org/D80952

clang/test/CodeGen/fpconstrained-cmp-double.c

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -frounding-math -ffp-exception-behavior=maytrap -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK -check-prefix=MAYTRAP
 
 // Disabled until constrained floating point is completed for PowerPC.
-// XFAIL: *
+// XFAIL: powerpc, powerpc64, powerpc64le
 
 _Bool QuietEqual(double f1, double f2) {
   // CHECK-LABEL: define {{.*}}i1 @QuietEqual(double %f1, double %f2)

clang/test/CodeGen/fpconstrained-cmp-float.c

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -frounding-math -ffp-exception-behavior=maytrap -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK -check-prefix=MAYTRAP
 
 // Disabled until constrained floating point is completed for PowerPC.
-// XFAIL: *
+// XFAIL: powerpc, powerpc64, powerpc64le
 
 _Bool QuietEqual(float f1, float f2) {
   // CHECK-LABEL: define {{.*}}i1 @QuietEqual(float %f1, float %f2)

clang/test/CodeGen/fpconstrained.c

@@ -7,7 +7,7 @@
 // RUN: %clang_cc1 -ffast-math -ffp-contract=fast -ffp-exception-behavior=maytrap -emit-llvm -o - %s | FileCheck %s -check-prefix=MAYTRAP
 
 // Disabled until constrained floating point is completed for PowerPC.
-// XFAIL: *
+// XFAIL: powerpc, powerpc64, powerpc664le
 
 float f0, f1, f2;
 

clang/test/CodeGen/fpconstrained.cpp

@@ -7,7 +7,7 @@
 // RUN: %clang_cc1 -x c++ -ffast-math -fexceptions -fcxx-exceptions -ffp-contract=fast -ffp-exception-behavior=maytrap -emit-llvm -o - %s | FileCheck %s -check-prefix=MAYTRAP
 
 // Disabled until constrained floating point is completed for PowerPC.
-// XFAIL: *
+// XFAIL: powerpc, powerpc64, powerpc64le
 
 float f0, f1, f2;