; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s ; (zext(select c, load1, load2)) -> (select c, zextload1, zextload2) define i64 @zext_scalar(ptr %p, i1 zeroext %c) { ; CHECK-LABEL: zext_scalar: ; CHECK: # %bb.0: ; CHECK-NEXT: movzbl (%rdi), %ecx ; CHECK-NEXT: movzbl 1(%rdi), %eax ; CHECK-NEXT: testl %esi, %esi ; CHECK-NEXT: cmoveq %rcx, %rax ; CHECK-NEXT: retq %ld1 = load volatile i8, ptr %p %arrayidx1 = getelementptr inbounds i8, ptr %p, i64 1 %ld2 = load volatile i8, ptr %arrayidx1 %cond.v = select i1 %c, i8 %ld2, i8 %ld1 %cond = zext i8 %cond.v to i64 ret i64 %cond } define i64 @zext_scalar2(ptr %p, ptr %q, i1 zeroext %c) { ; CHECK-LABEL: zext_scalar2: ; CHECK: # %bb.0: ; CHECK-NEXT: movzbl (%rdi), %ecx ; CHECK-NEXT: movzwl (%rsi), %eax ; CHECK-NEXT: testl %edx, %edx ; CHECK-NEXT: cmoveq %rcx, %rax ; CHECK-NEXT: retq %ld1 = load volatile i8, ptr %p %ext_ld1 = zext i8 %ld1 to i16 %ld2 = load volatile i16, ptr %q %cond.v = select i1 %c, i16 %ld2, i16 %ext_ld1 %cond = zext i16 %cond.v to i64 ret i64 %cond } ; Don't fold the ext if there is a load with conflicting ext type. define i64 @zext_scalar_neg(ptr %p, ptr %q, i1 zeroext %c) { ; CHECK-LABEL: zext_scalar_neg: ; CHECK: # %bb.0: ; CHECK-NEXT: movsbl (%rdi), %eax ; CHECK-NEXT: testl %edx, %edx ; CHECK-NEXT: je .LBB2_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: movzwl (%rsi), %eax ; CHECK-NEXT: .LBB2_2: ; CHECK-NEXT: movzwl %ax, %eax ; CHECK-NEXT: retq %ld1 = load volatile i8, ptr %p %ext_ld1 = sext i8 %ld1 to i16 %ld2 = load volatile i16, ptr %q %cond.v = select i1 %c, i16 %ld2, i16 %ext_ld1 %cond = zext i16 %cond.v to i64 ret i64 %cond } ; (sext(select c, load1, load2)) -> (select c, sextload1, sextload2) define i64 @sext_scalar(ptr %p, i1 zeroext %c) { ; CHECK-LABEL: sext_scalar: ; CHECK: # %bb.0: ; CHECK-NEXT: movsbq (%rdi), %rcx ; CHECK-NEXT: movsbq 1(%rdi), %rax ; CHECK-NEXT: testl %esi, %esi ; CHECK-NEXT: cmoveq %rcx, %rax ; CHECK-NEXT: retq %ld1 = load volatile i8, ptr %p %arrayidx1 = getelementptr inbounds i8, ptr %p, i64 1 %ld2 = load volatile i8, ptr %arrayidx1 %cond.v = select i1 %c, i8 %ld2, i8 %ld1 %cond = sext i8 %cond.v to i64 ret i64 %cond } ; Same as zext_scalar, but operate on vectors. define <2 x i64> @zext_vector_i1(ptr %p, i1 zeroext %c) { ; CHECK-LABEL: zext_vector_i1: ; CHECK: # %bb.0: ; CHECK-NEXT: pmovzxdq {{.*#+}} xmm1 = mem[0],zero,mem[1],zero ; CHECK-NEXT: pmovzxdq {{.*#+}} xmm0 = mem[0],zero,mem[1],zero ; CHECK-NEXT: testl %esi, %esi ; CHECK-NEXT: jne .LBB4_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: movdqa %xmm1, %xmm0 ; CHECK-NEXT: .LBB4_2: ; CHECK-NEXT: retq %ld1 = load volatile <2 x i32>, ptr %p %arrayidx1 = getelementptr inbounds <2 x i32>, ptr %p, i64 1 %ld2 = load volatile <2 x i32>, ptr %arrayidx1 %cond.v = select i1 %c, <2 x i32> %ld2, <2 x i32> %ld1 %cond = zext <2 x i32> %cond.v to <2 x i64> ret <2 x i64> %cond } define <2 x i64> @zext_vector_v2i1(ptr %p, <2 x i1> %c) { ; CHECK-LABEL: zext_vector_v2i1: ; CHECK: # %bb.0: ; CHECK-NEXT: psllq $63, %xmm0 ; CHECK-NEXT: pmovzxdq {{.*#+}} xmm1 = mem[0],zero,mem[1],zero ; CHECK-NEXT: pmovzxdq {{.*#+}} xmm2 = mem[0],zero,mem[1],zero ; CHECK-NEXT: blendvpd %xmm0, %xmm2, %xmm1 ; CHECK-NEXT: movapd %xmm1, %xmm0 ; CHECK-NEXT: retq %ld1 = load volatile <2 x i32>, ptr %p %arrayidx1 = getelementptr inbounds <2 x i32>, ptr %p, i64 1 %ld2 = load volatile <2 x i32>, ptr %arrayidx1 %cond.v = select <2 x i1> %c, <2 x i32> %ld2, <2 x i32> %ld1 %cond = zext <2 x i32> %cond.v to <2 x i64> ret <2 x i64> %cond } ; Same as sext_scalar, but operate on vectors. define <2 x i64> @sext_vector_i1(ptr %p, i1 zeroext %c) { ; CHECK-LABEL: sext_vector_i1: ; CHECK: # %bb.0: ; CHECK-NEXT: pmovsxdq (%rdi), %xmm1 ; CHECK-NEXT: pmovsxdq 8(%rdi), %xmm0 ; CHECK-NEXT: testl %esi, %esi ; CHECK-NEXT: jne .LBB6_2 ; CHECK-NEXT: # %bb.1: ; CHECK-NEXT: movdqa %xmm1, %xmm0 ; CHECK-NEXT: .LBB6_2: ; CHECK-NEXT: retq %ld1 = load volatile <2 x i32>, ptr %p %arrayidx1 = getelementptr inbounds <2 x i32>, ptr %p, i64 1 %ld2 = load volatile <2 x i32>, ptr %arrayidx1 %cond.v = select i1 %c, <2 x i32> %ld2, <2 x i32> %ld1 %cond = sext <2 x i32> %cond.v to <2 x i64> ret <2 x i64> %cond } define <2 x i64> @sext_vector_v2i1(ptr %p, <2 x i1> %c) { ; CHECK-LABEL: sext_vector_v2i1: ; CHECK: # %bb.0: ; CHECK-NEXT: psllq $63, %xmm0 ; CHECK-NEXT: pmovsxdq (%rdi), %xmm1 ; CHECK-NEXT: pmovsxdq 8(%rdi), %xmm2 ; CHECK-NEXT: blendvpd %xmm0, %xmm2, %xmm1 ; CHECK-NEXT: movapd %xmm1, %xmm0 ; CHECK-NEXT: retq %ld1 = load volatile <2 x i32>, ptr %p %arrayidx1 = getelementptr inbounds <2 x i32>, ptr %p, i64 1 %ld2 = load volatile <2 x i32>, ptr %arrayidx1 %cond.v = select <2 x i1> %c, <2 x i32> %ld2, <2 x i32> %ld1 %cond = sext <2 x i32> %cond.v to <2 x i64> ret <2 x i64> %cond }