1 ; RUN: llc < %s -march=x86 | FileCheck %s 2 3 ;; This example can't fold the or into an LEA. 4 define i32 @test(float ** %tmp2, i32 %tmp12) nounwind { 5 ; CHECK-LABEL: test: 6 ; CHECK-NOT: ret 7 ; CHECK: orl $1, %{{.*}} 8 ; CHECK: ret 9 10 %tmp3 = load float*, float** %tmp2 11 %tmp132 = shl i32 %tmp12, 2 ; <i32> [#uses=1] 12 %tmp4 = bitcast float* %tmp3 to i8* ; <i8*> [#uses=1] 13 %ctg2 = getelementptr i8, i8* %tmp4, i32 %tmp132 ; <i8*> [#uses=1] 14 %tmp6 = ptrtoint i8* %ctg2 to i32 ; <i32> [#uses=1] 15 %tmp14 = or i32 %tmp6, 1 ; <i32> [#uses=1] 16 ret i32 %tmp14 17 } 18 19 ;; This can! 20 define i32 @test2(i32 %a, i32 %b) nounwind { 21 ; CHECK-LABEL: test2: 22 ; CHECK-NOT: ret 23 ; CHECK: leal 3(,%{{.*}},8) 24 ; CHECK: ret 25 26 %c = shl i32 %a, 3 27 %d = or i32 %c, 3 28 ret i32 %d 29 } 30
