Repl = InstructionsToHoist.front();
// We can move Repl in HoistPt only when all operands are available.
- // When not HoistingGeps we need to copy the GEPs now.
// The order in which hoistings are done may influence the availability
// of operands.
- if (!allOperandsAvailable(Repl, HoistPt) && !HoistingGeps &&
- !makeGepOperandsAvailable(Repl, HoistPt, InstructionsToHoist))
- continue;
+ if (!allOperandsAvailable(Repl, HoistPt)) {
+
+ // When HoistingGeps there is nothing more we can do to make the
+ // operands available: just continue.
+ if (HoistingGeps)
+ continue;
+
+ // When not HoistingGeps we need to copy the GEPs.
+ if (!makeGepOperandsAvailable(Repl, HoistPt, InstructionsToHoist))
+ continue;
+ }
// Move the instruction at the end of HoistPt.
Instruction *Last = HoistPt->getTerminator();
--- /dev/null
+; RUN: opt -S -gvn-hoist < %s | FileCheck %s
+
+; Check that the call and fcmp are hoisted.
+; CHECK-LABEL: define void @fun(
+; CHECK: call float
+; CHECK: fcmp oeq
+; CHECK-NOT: call float
+; CHECK-NOT: fcmp oeq
+
+define void @fun(float %__b) minsize {
+entry:
+ br label %if.then
+
+if.then: ; preds = %entry
+ br i1 undef, label %if.then8, label %lor.lhs.false
+
+lor.lhs.false: ; preds = %if.then
+ %0 = call float @llvm.fabs.f32(float %__b) #2
+ %cmpinf7 = fcmp oeq float %0, 0x7FF0000000000000
+ unreachable
+
+if.then8: ; preds = %if.then
+ %1 = call float @llvm.fabs.f32(float %__b) #2
+ %cmpinf10 = fcmp oeq float %1, 0x7FF0000000000000
+ ret void
+}
+
+declare float @llvm.fabs.f32(float)
%53 = load double, double* %9, align 8
%54 = fcmp olt double %52, %53
ret i1 %54
-}
\ No newline at end of file
+}
; Check that all independent expressions are hoisted.
; CHECK-LABEL: @independentScalarsHoisting
-; CHECK: fadd
; CHECK: fsub
; CHECK: fdiv
; CHECK: fmul
+; CHECK: fadd
; CHECK-NOT: fsub
; CHECK-NOT: fdiv
; CHECK-NOT: fmul