; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s ; OR of two rotates of %a0(edi). define i32 @f0(i32 %a0) #0 { ; CHECK-LABEL: f0: ; CHECK: # %bb.0: # %b0 ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: roll $7, %eax ; CHECK-NEXT: roll $9, %edi ; CHECK-NEXT: orl %edi, %eax ; CHECK-NEXT: retq b0: %v0 = shl i32 %a0, 7 %v1 = lshr i32 %a0, 25 %v2 = or i32 %v0, %v1 %v3 = shl i32 %a0, 9 %v4 = lshr i32 %a0, 23 %v5 = or i32 %v3, %v4 %v6 = or i32 %v2, %v5 ret i32 %v6 } ; OR of two rotates of %a0(edi) with an extra input %a1(esi). define i32 @f1(i32 %a0, i32 %a1) #0 { ; CHECK-LABEL: f1: ; CHECK: # %bb.0: # %b0 ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shll $7, %eax ; CHECK-NEXT: roll $9, %edi ; CHECK-NEXT: orl %esi, %edi ; CHECK-NEXT: orl %edi, %eax ; CHECK-NEXT: retq b0: %v0 = shl i32 %a0, 7 %v1 = lshr i32 %a0, 25 %v2 = or i32 %v0, %a1 %v3 = shl i32 %a0, 9 %v4 = lshr i32 %a0, 23 %v5 = or i32 %v3, %v4 %v6 = or i32 %v2, %v5 %v7 = or i32 %v6, %v1 ret i32 %v6 } ; OR of two rotates of two different inputs: %a0(edi) and %a1(esi). define i32 @f2(i32 %a0, i32 %a1) #0 { ; CHECK-LABEL: f2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %ecx ; CHECK-NEXT: shll $11, %ecx ; CHECK-NEXT: shrl $21, %edi ; CHECK-NEXT: movl %esi, %eax ; CHECK-NEXT: shll $19, %eax ; CHECK-NEXT: shrl $13, %esi ; CHECK-NEXT: orl %edi, %esi ; CHECK-NEXT: orl %esi, %eax ; CHECK-NEXT: orl %ecx, %eax ; CHECK-NEXT: retq %v0 = shl i32 %a0, 11 %v1 = lshr i32 %a0, 21 %v2 = shl i32 %a1, 19 %v3 = lshr i32 %a1, 13 %v4 = or i32 %v0, %v2 %v5 = or i32 %v1, %v3 %v6 = or i32 %v4, %v5 ret i32 %v6 } ; ORs of multiple shifts of the same value with only one pair actually ; matching a rotate. define i32 @f3(i32 %a0) #0 { ; CHECK-LABEL: f3: ; CHECK: # %bb.0: # %b0 ; CHECK-NEXT: # kill: def $edi killed $edi def $rdi ; CHECK-NEXT: leal (,%rdi,8), %ecx ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shll $5, %eax ; CHECK-NEXT: movl %edi, %edx ; CHECK-NEXT: shll $7, %edx ; CHECK-NEXT: orl %eax, %edx ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shll $13, %eax ; CHECK-NEXT: orl %edx, %eax ; CHECK-NEXT: movl %edi, %edx ; CHECK-NEXT: shll $19, %edx ; CHECK-NEXT: orl %eax, %edx ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shrl $2, %eax ; CHECK-NEXT: orl %edx, %eax ; CHECK-NEXT: movl %edi, %edx ; CHECK-NEXT: shrl $15, %edx ; CHECK-NEXT: orl %eax, %edx ; CHECK-NEXT: movl %edi, %esi ; CHECK-NEXT: shrl $23, %esi ; CHECK-NEXT: orl %edx, %esi ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shrl $25, %eax ; CHECK-NEXT: orl %esi, %eax ; CHECK-NEXT: shrl $30, %edi ; CHECK-NEXT: orl %edi, %eax ; CHECK-NEXT: orl %ecx, %eax ; CHECK-NEXT: retq b0: %v0 = shl i32 %a0, 3 %v1 = shl i32 %a0, 5 %v2 = shl i32 %a0, 7 ; rotate %v3 = shl i32 %a0, 13 %v4 = shl i32 %a0, 19 %v5 = lshr i32 %a0, 2 %v6 = lshr i32 %a0, 15 %v7 = lshr i32 %a0, 23 %v8 = lshr i32 %a0, 25 ; rotate %v9 = lshr i32 %a0, 30 %v10 = or i32 %v0, %v1 %v11 = or i32 %v10, %v2 %v12 = or i32 %v11, %v3 %v13 = or i32 %v12, %v4 %v14 = or i32 %v13, %v5 %v15 = or i32 %v14, %v6 %v16 = or i32 %v15, %v7 %v17 = or i32 %v16, %v8 %v18 = or i32 %v17, %v9 ret i32 %v18 } attributes #0 = { readnone nounwind }