; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64-NOBMI2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=X64-BMI2 ; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X86-NOBMI2 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=X86-BMI2 define i64 @t0(i64 %val, i64 %shamt) nounwind { ; X64-NOBMI2-LABEL: t0: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: leaq 32(%rsi), %rcx ; X64-NOBMI2-NEXT: negq %rcx ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: t0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: addq $32, %rsi ; X64-BMI2-NEXT: negq %rsi ; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: t0: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movb $32, %cl ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB0_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB0_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: t0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movb $32, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB0_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB0_2: ; X86-BMI2-NEXT: retl %negshamt = sub i64 32, %shamt %shifted = shl i64 %val, %negshamt ret i64 %shifted } ; The constant we are subtracting from should be a multiple of 32. define i64 @n1(i64 %val, i64 %shamt) nounwind { ; X64-NOBMI2-LABEL: n1: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: movb $33, %cl ; X64-NOBMI2-NEXT: subb %sil, %cl ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: n1: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: movb $33, %al ; X64-BMI2-NEXT: subb %sil, %al ; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: n1: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movb $33, %cl ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB1_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB1_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: n1: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movb $33, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB1_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB1_2: ; X86-BMI2-NEXT: retl %negshamt = sub i64 33, %shamt %shifted = shl i64 %val, %negshamt ret i64 %shifted } define i64 @n2(i64 %val, i64 %shamt) nounwind { ; X64-NOBMI2-LABEL: n2: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: movb $31, %cl ; X64-NOBMI2-NEXT: subb %sil, %cl ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: n2: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: movb $31, %al ; X64-BMI2-NEXT: subb %sil, %al ; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: n2: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movb $31, %cl ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB2_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB2_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: n2: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movb $31, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB2_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB2_2: ; X86-BMI2-NEXT: retl %negshamt = sub i64 31, %shamt %shifted = shl i64 %val, %negshamt ret i64 %shifted } define i64 @t3(i64 %val, i64 %shamt) nounwind { ; X64-NOBMI2-LABEL: t3: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rsi, %rcx ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: negb %cl ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: t3: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: negb %sil ; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: t3: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movb $64, %cl ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB3_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB3_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: t3: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB3_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB3_2: ; X86-BMI2-NEXT: retl %negshamt = sub i64 64, %shamt %shifted = shl i64 %val, %negshamt ret i64 %shifted } define i64 @t4(i64 %val, i64 %shamt) nounwind { ; X64-NOBMI2-LABEL: t4: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: leaq 96(%rsi), %rcx ; X64-NOBMI2-NEXT: negq %rcx ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: t4: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: addq $96, %rsi ; X64-BMI2-NEXT: negq %rsi ; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: t4: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movb $96, %cl ; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB4_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB4_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: t4: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movb $96, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB4_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB4_2: ; X86-BMI2-NEXT: retl %negshamt = sub i64 96, %shamt %shifted = shl i64 %val, %negshamt ret i64 %shifted } define i64 @t5_cse(i64 %val, i64 %shamt, ptr%dst) nounwind { ; X64-NOBMI2-LABEL: t5_cse: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: leaq 32(%rsi), %rcx ; X64-NOBMI2-NEXT: movq %rcx, (%rdx) ; X64-NOBMI2-NEXT: negq %rcx ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: t5_cse: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: addq $32, %rsi ; X64-BMI2-NEXT: movq %rsi, (%rdx) ; X64-BMI2-NEXT: negq %rsi ; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: t5_cse: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %ebx ; X86-NOBMI2-NEXT: pushl %edi ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI2-NEXT: movl %eax, %ebx ; X86-NOBMI2-NEXT: addl $32, %ebx ; X86-NOBMI2-NEXT: adcl $0, %edi ; X86-NOBMI2-NEXT: movl %ebx, (%ecx) ; X86-NOBMI2-NEXT: movl %edi, 4(%ecx) ; X86-NOBMI2-NEXT: movb $32, %cl ; X86-NOBMI2-NEXT: subb %al, %cl ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB5_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB5_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: popl %edi ; X86-NOBMI2-NEXT: popl %ebx ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: t5_cse: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl %ebx, %edi ; X86-BMI2-NEXT: addl $32, %edi ; X86-BMI2-NEXT: adcl $0, %esi ; X86-BMI2-NEXT: movl %edi, (%ecx) ; X86-BMI2-NEXT: movl %esi, 4(%ecx) ; X86-BMI2-NEXT: movb $32, %cl ; X86-BMI2-NEXT: subb %bl, %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB5_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB5_2: ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl %incshamt = add i64 %shamt, 32 store i64 %incshamt, ptr %dst %negshamt = sub i64 32, %shamt %shifted = shl i64 %val, %negshamt ret i64 %shifted } define i64 @t6_cse2(i64 %val, i64 %shamt, ptr%dst) nounwind { ; X64-NOBMI2-LABEL: t6_cse2: ; X64-NOBMI2: # %bb.0: ; X64-NOBMI2-NEXT: movq %rdi, %rax ; X64-NOBMI2-NEXT: movl $32, %ecx ; X64-NOBMI2-NEXT: subq %rsi, %rcx ; X64-NOBMI2-NEXT: movq %rcx, (%rdx) ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI2-NEXT: shlq %cl, %rax ; X64-NOBMI2-NEXT: retq ; ; X64-BMI2-LABEL: t6_cse2: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: movl $32, %eax ; X64-BMI2-NEXT: subq %rsi, %rax ; X64-BMI2-NEXT: movq %rax, (%rdx) ; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax ; X64-BMI2-NEXT: retq ; ; X86-NOBMI2-LABEL: t6_cse2: ; X86-NOBMI2: # %bb.0: ; X86-NOBMI2-NEXT: pushl %edi ; X86-NOBMI2-NEXT: pushl %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI2-NEXT: xorl %edi, %edi ; X86-NOBMI2-NEXT: movl $32, %ecx ; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI2-NEXT: sbbl {{[0-9]+}}(%esp), %edi ; X86-NOBMI2-NEXT: movl %ecx, (%eax) ; X86-NOBMI2-NEXT: movl %edi, 4(%eax) ; X86-NOBMI2-NEXT: movl %esi, %eax ; X86-NOBMI2-NEXT: shll %cl, %eax ; X86-NOBMI2-NEXT: shldl %cl, %esi, %edx ; X86-NOBMI2-NEXT: testb $32, %cl ; X86-NOBMI2-NEXT: je .LBB6_2 ; X86-NOBMI2-NEXT: # %bb.1: ; X86-NOBMI2-NEXT: movl %eax, %edx ; X86-NOBMI2-NEXT: xorl %eax, %eax ; X86-NOBMI2-NEXT: .LBB6_2: ; X86-NOBMI2-NEXT: popl %esi ; X86-NOBMI2-NEXT: popl %edi ; X86-NOBMI2-NEXT: retl ; ; X86-BMI2-LABEL: t6_cse2: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: movl $32, %ecx ; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: sbbl {{[0-9]+}}(%esp), %edi ; X86-BMI2-NEXT: movl %ecx, (%esi) ; X86-BMI2-NEXT: movl %edi, 4(%esi) ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB6_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB6_2: ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: retl %negshamt = sub i64 32, %shamt store i64 %negshamt, ptr %dst %shifted = shl i64 %val, %negshamt ret i64 %shifted }