forked from OSchip/llvm-project
76 lines
1.6 KiB
LLVM
76 lines
1.6 KiB
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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; CHECK: count_leading_0:
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; CHECK: cl0(r0)
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define i32 @count_leading_0(i32 %p) #0 {
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%1 = call i32 @llvm.ctlz.i32(i32 %p, i1 false)
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ret i32 %1
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}
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; CHECK: count_leading_0p:
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; CHECK: cl0(r1:0)
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define i32 @count_leading_0p(i64 %p) #0 {
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%1 = call i64 @llvm.ctlz.i64(i64 %p, i1 false)
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%2 = trunc i64 %1 to i32
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ret i32 %2
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}
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; CHECK: count_leading_1:
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; CHECK: cl1(r0)
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define i32 @count_leading_1(i32 %p) #0 {
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%1 = xor i32 %p, -1
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%2 = call i32 @llvm.ctlz.i32(i32 %1, i1 false)
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ret i32 %2
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}
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; CHECK: count_leading_1p:
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; CHECK: cl1(r1:0)
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define i32 @count_leading_1p(i64 %p) #0 {
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%1 = xor i64 %p, -1
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%2 = call i64 @llvm.ctlz.i64(i64 %1, i1 false)
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%3 = trunc i64 %2 to i32
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ret i32 %3
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}
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; CHECK: count_trailing_0:
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; CHECK: ct0(r0)
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define i32 @count_trailing_0(i32 %p) #0 {
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%1 = call i32 @llvm.cttz.i32(i32 %p, i1 false)
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ret i32 %1
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}
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; CHECK: count_trailing_0p:
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; CHECK: ct0(r1:0)
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define i32 @count_trailing_0p(i64 %p) #0 {
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%1 = call i64 @llvm.cttz.i64(i64 %p, i1 false)
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%2 = trunc i64 %1 to i32
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ret i32 %2
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}
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; CHECK: count_trailing_1:
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; CHECK: ct1(r0)
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define i32 @count_trailing_1(i32 %p) #0 {
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%1 = xor i32 %p, -1
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%2 = call i32 @llvm.cttz.i32(i32 %1, i1 false)
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ret i32 %2
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}
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; CHECK: count_trailing_1p:
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; CHECK: ct1(r1:0)
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define i32 @count_trailing_1p(i64 %p) #0 {
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%1 = xor i64 %p, -1
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%2 = call i64 @llvm.cttz.i64(i64 %1, i1 false)
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%3 = trunc i64 %2 to i32
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ret i32 %3
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}
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declare i32 @llvm.ctlz.i32(i32, i1)
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declare i64 @llvm.ctlz.i64(i64, i1)
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declare i32 @llvm.cttz.i32(i32, i1)
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declare i64 @llvm.cttz.i64(i64, i1)
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attributes #0 = { nounwind "target-cpu"="hexagonv55" }
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