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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.h4
-rw-r--r--llvm/test/CodeGen/X86/fp-logic.ll6
2 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h
index c6733467a4a..fd6d5f5ae8d 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.h
+++ b/llvm/lib/Target/X86/X86ISelLowering.h
@@ -758,6 +758,10 @@ namespace llvm {
bool isCheapToSpeculateCtlz() const override;
+ bool hasBitPreservingFPLogic(EVT VT) const override {
+ return VT == MVT::f32 || VT == MVT::f64 || VT.isVector();
+ }
+
bool hasAndNotCompare(SDValue Y) const override;
/// Return the value type to use for ISD::SETCC.
diff --git a/llvm/test/CodeGen/X86/fp-logic.ll b/llvm/test/CodeGen/X86/fp-logic.ll
index b5f1349cada..9ab6751d654 100644
--- a/llvm/test/CodeGen/X86/fp-logic.ll
+++ b/llvm/test/CodeGen/X86/fp-logic.ll
@@ -265,8 +265,7 @@ define float @movmsk(float %x) {
define double @bitcast_fabs(double %x) {
; CHECK-LABEL: bitcast_fabs:
; CHECK: # BB#0:
-; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
-; CHECK-NEXT: andpd %xmm1, %xmm0
+; CHECK-NEXT: andpd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
;
%bc1 = bitcast double %x to i64
@@ -278,8 +277,7 @@ define double @bitcast_fabs(double %x) {
define float @bitcast_fneg(float %x) {
; CHECK-LABEL: bitcast_fneg:
; CHECK: # BB#0:
-; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
-; CHECK-NEXT: xorps %xmm1, %xmm0
+; CHECK-NEXT: xorps {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
;
%bc1 = bitcast float %x to i32
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