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124 lines
3.6 KiB
LLVM
124 lines
3.6 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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declare i16 @llvm.bswap.i16(i16)
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declare i32 @llvm.bswap.i32(i32)
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declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
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declare i33 @llvm.cttz.i33(i33, i1)
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declare i32 @llvm.ctlz.i32(i32, i1)
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declare i8 @llvm.ctpop.i8(i8)
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declare i11 @llvm.ctpop.i11(i11)
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declare <2 x i32> @llvm.cttz.v2i32(<2 x i32>, i1)
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declare <2 x i32> @llvm.ctlz.v2i32(<2 x i32>, i1)
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declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
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define i1 @bswap_eq_i16(i16 %x) {
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; CHECK-LABEL: @bswap_eq_i16(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i16 %x, 256
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%bs = call i16 @llvm.bswap.i16(i16 %x)
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%cmp = icmp eq i16 %bs, 1
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ret i1 %cmp
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}
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define i1 @bswap_ne_i32(i32 %x) {
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; CHECK-LABEL: @bswap_ne_i32(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 %x, 33554432
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%bs = tail call i32 @llvm.bswap.i32(i32 %x)
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%cmp = icmp ne i32 %bs, 2
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ret i1 %cmp
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}
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define <2 x i1> @bswap_eq_v2i64(<2 x i64> %x) {
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; CHECK-LABEL: @bswap_eq_v2i64(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i64> %x, <i64 216172782113783808, i64 216172782113783808>
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%bs = tail call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %x)
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%cmp = icmp eq <2 x i64> %bs, <i64 3, i64 3>
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ret <2 x i1> %cmp
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}
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define i1 @ctlz_eq_bitwidth_i32(i32 %x) {
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; CHECK-LABEL: @ctlz_eq_bitwidth_i32(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %x, 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%lz = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
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%cmp = icmp eq i32 %lz, 32
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ret i1 %cmp
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}
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define <2 x i1> @ctlz_ne_bitwidth_v2i32(<2 x i32> %a) {
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; CHECK-LABEL: @ctlz_ne_bitwidth_v2i32(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i32> %a, zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%x = tail call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %a, i1 false)
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%cmp = icmp ne <2 x i32> %x, <i32 32, i32 32>
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ret <2 x i1> %cmp
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}
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define i1 @cttz_ne_bitwidth_i33(i33 %x) {
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; CHECK-LABEL: @cttz_ne_bitwidth_i33(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i33 %x, 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%tz = tail call i33 @llvm.cttz.i33(i33 %x, i1 false)
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%cmp = icmp ne i33 %tz, 33
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ret i1 %cmp
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}
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define <2 x i1> @cttz_eq_bitwidth_v2i32(<2 x i32> %a) {
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; CHECK-LABEL: @cttz_eq_bitwidth_v2i32(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i32> %a, zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%x = tail call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %a, i1 false)
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%cmp = icmp eq <2 x i32> %x, <i32 32, i32 32>
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ret <2 x i1> %cmp
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}
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define i1 @ctpop_eq_zero_i11(i11 %x) {
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; CHECK-LABEL: @ctpop_eq_zero_i11(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i11 %x, 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%pop = tail call i11 @llvm.ctpop.i11(i11 %x)
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%cmp = icmp eq i11 %pop, 0
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ret i1 %cmp
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}
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define <2 x i1> @ctpop_ne_zero_v2i32(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_ne_zero_v2i32(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i32> %x, zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%pop = tail call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %x)
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%cmp = icmp ne <2 x i32> %pop, zeroinitializer
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ret <2 x i1> %cmp
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}
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define i1 @ctpop_eq_bitwidth_i8(i8 %x) {
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; CHECK-LABEL: @ctpop_eq_bitwidth_i8(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 %x, -1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%pop = tail call i8 @llvm.ctpop.i8(i8 %x)
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%cmp = icmp eq i8 %pop, 8
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ret i1 %cmp
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}
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define <2 x i1> @ctpop_ne_bitwidth_v2i32(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_ne_bitwidth_v2i32(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i32> %x, <i32 -1, i32 -1>
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%pop = tail call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %x)
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%cmp = icmp ne <2 x i32> %pop, <i32 32, i32 32>
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ret <2 x i1> %cmp
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}
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