diff options
Diffstat (limited to 'test/Transforms/InstCombine/cmp-intrinsic.ll')
-rw-r--r-- | test/Transforms/InstCombine/cmp-intrinsic.ll | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/cmp-intrinsic.ll b/test/Transforms/InstCombine/cmp-intrinsic.ll new file mode 100644 index 000000000000..7fc1d12916bf --- /dev/null +++ b/test/Transforms/InstCombine/cmp-intrinsic.ll @@ -0,0 +1,123 @@ +; 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 +} + |