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