1*8a3537bfScsstormq; RUN: llc < %s -mtriple=x86_64-apple-darwin8 -misched-print-dags -o - 2>&1 > /dev/null | FileCheck %s 2*8a3537bfScsstormq; REQUIRES: asserts 3*8a3537bfScsstormq 4*8a3537bfScsstormq@sc = common global i8 0 5*8a3537bfScsstormq@uc = common global i8 0 6*8a3537bfScsstormq@ui = common global i32 0 7*8a3537bfScsstormq 8*8a3537bfScsstormq; Regression Test for PR92368. 9*8a3537bfScsstormq; 10*8a3537bfScsstormq; CHECK: SU(8): CMP8rr %4:gr8, %3:gr8, implicit-def $eflags 11*8a3537bfScsstormq; CHECK: Predecessors: 12*8a3537bfScsstormq; CHECK-NEXT: SU(6): Data Latency=0 Reg=%4 13*8a3537bfScsstormq; CHECK-NEXT: SU(7): Out Latency=0 14*8a3537bfScsstormq; CHECK-NEXT: SU(5): Out Latency=0 15*8a3537bfScsstormq; CHECK-NEXT: SU(3): Data Latency=4 Reg=%3 16*8a3537bfScsstormqdefine void @misched_bug() nounwind { 17*8a3537bfScsstormqentry: 18*8a3537bfScsstormq %v0 = load i8, ptr @sc, align 1 19*8a3537bfScsstormq %v1 = zext i8 %v0 to i32 20*8a3537bfScsstormq %v2 = load i8, ptr @uc, align 1 21*8a3537bfScsstormq %v3 = zext i8 %v2 to i32 22*8a3537bfScsstormq %v4 = trunc i32 %v3 to i8 23*8a3537bfScsstormq %v5 = trunc i32 %v1 to i8 24*8a3537bfScsstormq %pair74 = cmpxchg ptr @sc, i8 %v4, i8 %v5 monotonic monotonic 25*8a3537bfScsstormq %v6 = extractvalue { i8, i1 } %pair74, 0 26*8a3537bfScsstormq %v7 = icmp eq i8 %v6, %v4 27*8a3537bfScsstormq %v8 = zext i1 %v7 to i8 28*8a3537bfScsstormq %v9 = zext i8 %v8 to i32 29*8a3537bfScsstormq store i32 %v9, ptr @ui, align 4 30*8a3537bfScsstormq br label %return 31*8a3537bfScsstormq 32*8a3537bfScsstormqreturn: ; preds = %ventry 33*8a3537bfScsstormq ret void 34*8a3537bfScsstormq} 35*8a3537bfScsstormq 36