f668a08e00
This treats the zext nneg as sext if X is known to have sufficient sign bits to allow the zext or truncate or both to removed. This code is taken from the same optimization for sext.
269 lines
7.0 KiB
LLVM
269 lines
7.0 KiB
LLVM
; RUN: llc < %s -mtriple=ve-unknown-unknown | FileCheck %s
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declare i128 @llvm.ctlz.i128(i128, i1)
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declare i64 @llvm.ctlz.i64(i64, i1)
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declare i32 @llvm.ctlz.i32(i32, i1)
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declare i16 @llvm.ctlz.i16(i16, i1)
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declare i8 @llvm.ctlz.i8(i8, i1)
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define i128 @func128(i128 %p){
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; CHECK-LABEL: func128:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s2, %s1
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, 64(, %s0)
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; CHECK-NEXT: cmov.l.ne %s0, %s2, %s1
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; CHECK-NEXT: or %s1, 0, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i128 @llvm.ctlz.i128(i128 %p, i1 true)
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ret i128 %r
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}
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define i64 @func64(i64 %p) {
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; CHECK-LABEL: func64:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i64 @llvm.ctlz.i64(i64 %p, i1 true)
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ret i64 %r
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}
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define signext i32 @func32s(i32 signext %p) {
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; CHECK-LABEL: func32s:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i32 @llvm.ctlz.i32(i32 %p, i1 true)
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ret i32 %r
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}
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define zeroext i32 @func32z(i32 zeroext %p) {
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; CHECK-LABEL: func32z:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i32 @llvm.ctlz.i32(i32 %p, i1 true)
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ret i32 %r
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}
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define signext i16 @func16s(i16 signext %p) {
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; CHECK-LABEL: func16s:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (48)0
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -16, %s0
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; CHECK-NEXT: and %s0, %s0, (48)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i16 @llvm.ctlz.i16(i16 %p, i1 true)
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ret i16 %r
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}
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define zeroext i16 @func16z(i16 zeroext %p) {
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; CHECK-LABEL: func16z:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -16, %s0
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; CHECK-NEXT: and %s0, %s0, (48)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i16 @llvm.ctlz.i16(i16 %p, i1 true)
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ret i16 %r
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}
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define signext i8 @func8s(i8 signext %p) {
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; CHECK-LABEL: func8s:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (56)0
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -24, %s0
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; CHECK-NEXT: and %s0, %s0, (56)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i8 @llvm.ctlz.i8(i8 %p, i1 true)
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ret i8 %r
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}
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define zeroext i8 @func8z(i8 zeroext %p) {
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; CHECK-LABEL: func8z:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -24, %s0
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; CHECK-NEXT: and %s0, %s0, (56)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i8 @llvm.ctlz.i8(i8 %p, i1 true)
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ret i8 %r
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}
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define i128 @func128i(){
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; CHECK-LABEL: func128i:
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; CHECK: # %bb.0:
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; CHECK-NEXT: lea %s0, 112
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; CHECK-NEXT: or %s1, 0, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i128 @llvm.ctlz.i128(i128 65535, i1 true)
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ret i128 %r
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}
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define i64 @func64i() {
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; CHECK-LABEL: func64i:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 48, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i64 @llvm.ctlz.i64(i64 65535, i1 true)
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ret i64 %r
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}
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define signext i32 @func32is() {
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; CHECK-LABEL: func32is:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 16, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i32 @llvm.ctlz.i32(i32 65535, i1 true)
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ret i32 %r
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}
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define zeroext i32 @func32iz() {
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; CHECK-LABEL: func32iz:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 16, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i32 @llvm.ctlz.i32(i32 65535, i1 true)
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ret i32 %r
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}
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define signext i16 @func16is() {
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; CHECK-LABEL: func16is:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 8, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i16 @llvm.ctlz.i16(i16 255, i1 true)
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ret i16 %r
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}
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define zeroext i16 @func16iz() {
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; CHECK-LABEL: func16iz:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 8, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i16 @llvm.ctlz.i16(i16 255, i1 true)
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ret i16 %r
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}
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define signext i8 @func8is() {
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; CHECK-LABEL: func8is:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 0, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i8 @llvm.ctlz.i8(i8 255, i1 true)
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ret i8 %r
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}
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define zeroext i8 @func8iz() {
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; CHECK-LABEL: func8iz:
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; CHECK: # %bb.0:
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; CHECK-NEXT: or %s0, 0, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i8 @llvm.ctlz.i8(i8 255, i1 true)
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ret i8 %r
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}
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define i128 @func128x(i128 %p){
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; CHECK-LABEL: func128x:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s2, %s1
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, 64(, %s0)
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; CHECK-NEXT: cmov.l.ne %s0, %s2, %s1
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; CHECK-NEXT: or %s1, 0, (0)1
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i128 @llvm.ctlz.i128(i128 %p, i1 false)
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ret i128 %r
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}
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define i64 @func64x(i64 %p) {
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; CHECK-LABEL: func64x:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i64 @llvm.ctlz.i64(i64 %p, i1 false)
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ret i64 %r
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}
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define signext i32 @func32sx(i32 signext %p) {
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; CHECK-LABEL: func32sx:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i32 @llvm.ctlz.i32(i32 %p, i1 false)
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ret i32 %r
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}
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define zeroext i32 @func32zx(i32 zeroext %p) {
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; CHECK-LABEL: func32zx:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i32 @llvm.ctlz.i32(i32 %p, i1 false)
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ret i32 %r
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}
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define signext i16 @func16sx(i16 signext %p) {
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; CHECK-LABEL: func16sx:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (48)0
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -16, %s0
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; CHECK-NEXT: and %s0, %s0, (48)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i16 @llvm.ctlz.i16(i16 %p, i1 false)
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ret i16 %r
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}
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define zeroext i16 @func16zx(i16 zeroext %p) {
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; CHECK-LABEL: func16zx:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -16, %s0
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; CHECK-NEXT: and %s0, %s0, (48)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i16 @llvm.ctlz.i16(i16 %p, i1 false)
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ret i16 %r
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}
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define signext i8 @func8sx(i8 signext %p) {
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; CHECK-LABEL: func8sx:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (56)0
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -24, %s0
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; CHECK-NEXT: and %s0, %s0, (56)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i8 @llvm.ctlz.i8(i8 %p, i1 false)
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ret i8 %r
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}
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define zeroext i8 @func8zx(i8 zeroext %p) {
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; CHECK-LABEL: func8zx:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ldz %s0, %s0
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; CHECK-NEXT: lea %s0, -32(, %s0)
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; CHECK-NEXT: adds.w.sx %s0, -24, %s0
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; CHECK-NEXT: and %s0, %s0, (56)0
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; CHECK-NEXT: b.l.t (, %s10)
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%r = tail call i8 @llvm.ctlz.i8(i8 %p, i1 false)
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ret i8 %r
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}
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