; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; Coalescing from R32 to a subset R32_. Once another register coalescer bug is ; fixed, the movb should go away as well. ; RUN: llc < %s -mtriple=i686-- -relocation-model=static | FileCheck %s @B = external dso_local global i32 ; <ptr> [#uses=2] @C = external dso_local global ptr ; <ptr> [#uses=2] define void @test(i32 %A) { ; CHECK-LABEL: test: ; CHECK: # %bb.0: ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax ; CHECK-NEXT: movl %eax, %ecx ; CHECK-NEXT: andb $16, %cl ; CHECK-NEXT: shll %cl, B ; CHECK-NEXT: shrl $3, %eax ; CHECK-NEXT: addl %eax, C ; CHECK-NEXT: retl %A.upgrd.1 = trunc i32 %A to i8 ; <i8> [#uses=1] %tmp2 = load i32, ptr @B ; <i32> [#uses=1] %tmp3 = and i8 %A.upgrd.1, 16 ; <i8> [#uses=1] %shift.upgrd.2 = zext i8 %tmp3 to i32 ; <i32> [#uses=1] %tmp4 = shl i32 %tmp2, %shift.upgrd.2 ; <i32> [#uses=1] store i32 %tmp4, ptr @B %tmp6 = lshr i32 %A, 3 ; <i32> [#uses=1] %tmp = load ptr, ptr @C ; <ptr> [#uses=1] %tmp8 = ptrtoint ptr %tmp to i32 ; <i32> [#uses=1] %tmp9 = add i32 %tmp8, %tmp6 ; <i32> [#uses=1] %tmp9.upgrd.3 = inttoptr i32 %tmp9 to ptr ; <ptr> [#uses=1] store ptr %tmp9.upgrd.3, ptr @C ret void }