31 lines · plain
1; RUN: llc -stop-after=machine-scheduler -debug-only dagcombine,selectiondag -o - %s 2>&1 | FileCheck %s2; REQUIRES: asserts3; pr426384target triple = "armv8r-arm-none-eabi"5%struct.__va_list = type { ptr }6define double @foo(i32 %P0, ...) #0 {7entry:8 %V1 = alloca [8 x i8], align 89 %vl = alloca %struct.__va_list, align 410 call void asm sideeffect "", "r"(ptr nonnull %V1)11 call void @llvm.va_start(ptr nonnull %vl)12 %argp.cur3 = load ptr, ptr %vl, align 413 %v.sroa.0.0.copyload = load double, ptr %argp.cur3, align 414 ret double %v.sroa.0.0.copyload15}16 17declare void @llvm.va_start(ptr)18 19attributes #0 = { "target-cpu"="cortex-r52" "target-features"="-fp64" }20 21; Ensures that the machine scheduler does not move accessing the upper22; 32 bits of the double to before actually storing it to memory23 24; CHECK: Creating new node: {{.*}} = add FrameIndex:i32<2>, Constant:i32<4>25; CHECK-NEXT: Creating new node: {{.*}} i32,ch = load<(load (s32) from [[MEM:%.*]] + 4)>26; CHECK: INLINEASM27; CHECK: (load (s32) from [[MEM]] + 4)28; CHECK-NOT: (store (s32) into [[MEM]] + 4)29 30 31