1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s 3 4; This tests is checking for a case where the x86 load-op-store fusion 5; misses a dependence between the fused load and a non-fused operand 6; to the load causing a cycle. Here the dependence in question comes 7; from the carry in input of the adcl. 8 9@vx = external dso_local local_unnamed_addr global <2 x i32>, align 8 10 11define void @pr36274(ptr %somewhere) { 12; CHECK-LABEL: pr36274: 13; CHECK: # %bb.0: 14; CHECK-NEXT: movl vx+4, %eax 15; CHECK-NEXT: addl $1, vx 16; CHECK-NEXT: adcl $0, %eax 17; CHECK-NEXT: movl %eax, vx+4 18; CHECK-NEXT: retl 19 %a1 = getelementptr <2 x i32>, ptr @vx, i32 0, i32 1 20 %x1 = load volatile i32, ptr %a1, align 4 21 %x0 = load volatile i32, ptr @vx, align 8 22 %vx0 = insertelement <2 x i32> undef, i32 %x0, i32 0 23 %vx1 = insertelement <2 x i32> %vx0, i32 %x1, i32 1 24 %x = bitcast <2 x i32> %vx1 to i64 25 %add = add i64 %x, 1 26 %vadd = bitcast i64 %add to <2 x i32> 27 %vx1_0 = extractelement <2 x i32> %vadd, i32 0 28 %vx1_1 = extractelement <2 x i32> %vadd, i32 1 29 store i32 %vx1_0, ptr @vx, align 8 30 store i32 %vx1_1, ptr %a1, align 4 31 ret void 32} 33