bool isTruncateFree(Type *Ty1, Type *Ty2) const override;
bool isTruncateFree(EVT VT1, EVT VT2) const override;
+ bool isCheapToSpeculateCttz() const override { return true; }
+ bool isCheapToSpeculateCtlz() const override { return true; }
+ bool isCtlzFast() const override { return true; }
+
bool allowTruncateForTailCall(Type *Ty1, Type *Ty2) const override;
/// Return true if an FMA operation is faster than a pair of mul and add
--- /dev/null
+; RUN: llc -march=hexagon < %s | FileCheck %s
+
+; CHECK: count_leading_0:
+; CHECK: cl0(r0)
+define i32 @count_leading_0(i32 %p) #0 {
+ %1 = call i32 @llvm.ctlz.i32(i32 %p, i1 false)
+ ret i32 %1
+}
+
+; CHECK: count_leading_0p:
+; CHECK: cl0(r1:0)
+define i32 @count_leading_0p(i64 %p) #0 {
+ %1 = call i64 @llvm.ctlz.i64(i64 %p, i1 false)
+ %2 = trunc i64 %1 to i32
+ ret i32 %2
+}
+
+; CHECK: count_leading_1:
+; CHECK: cl1(r0)
+define i32 @count_leading_1(i32 %p) #0 {
+ %1 = xor i32 %p, -1
+ %2 = call i32 @llvm.ctlz.i32(i32 %1, i1 false)
+ ret i32 %2
+}
+
+; CHECK: count_leading_1p:
+; CHECK: cl1(r1:0)
+define i32 @count_leading_1p(i64 %p) #0 {
+ %1 = xor i64 %p, -1
+ %2 = call i64 @llvm.ctlz.i64(i64 %1, i1 false)
+ %3 = trunc i64 %2 to i32
+ ret i32 %3
+}
+
+
+
+; CHECK: count_trailing_0:
+; CHECK: ct0(r0)
+define i32 @count_trailing_0(i32 %p) #0 {
+ %1 = call i32 @llvm.cttz.i32(i32 %p, i1 false)
+ ret i32 %1
+}
+
+; CHECK: count_trailing_0p:
+; CHECK: ct0(r1:0)
+define i32 @count_trailing_0p(i64 %p) #0 {
+ %1 = call i64 @llvm.cttz.i64(i64 %p, i1 false)
+ %2 = trunc i64 %1 to i32
+ ret i32 %2
+}
+
+; CHECK: count_trailing_1:
+; CHECK: ct1(r0)
+define i32 @count_trailing_1(i32 %p) #0 {
+ %1 = xor i32 %p, -1
+ %2 = call i32 @llvm.cttz.i32(i32 %1, i1 false)
+ ret i32 %2
+}
+
+; CHECK: count_trailing_1p:
+; CHECK: ct1(r1:0)
+define i32 @count_trailing_1p(i64 %p) #0 {
+ %1 = xor i64 %p, -1
+ %2 = call i64 @llvm.cttz.i64(i64 %1, i1 false)
+ %3 = trunc i64 %2 to i32
+ ret i32 %3
+}
+
+declare i32 @llvm.ctlz.i32(i32, i1)
+declare i64 @llvm.ctlz.i64(i64, i1)
+declare i32 @llvm.cttz.i32(i32, i1)
+declare i64 @llvm.cttz.i64(i64, i1)
+
+attributes #0 = { nounwind "target-cpu"="hexagonva55" }
+