blob: 20cb3fbfb3529b457d7ef68f3c5b9f78827d2d35 [file] [log] [blame]
; RUN: llc -mtriple=armv7--eabi -verify-machineinstrs < %s | FileCheck %s
; Check the way we schedule/merge a bunch of loads and stores.
; Originally test/CodeGen/ARM/2011-07-07-ScheduleDAGCrash.ll ; now
; being used as a test of optimizations related to ldm/stm.
; FIXME: We could merge more loads/stores with regalloc hints.
; FIXME: Fix scheduling so we don't have 16 live registers.
define void @f(ptr nocapture %a, ptr nocapture %b, ptr nocapture %cc, ptr nocapture %dd) nounwind uwtable noinline ssp {
entry:
%c = load i256, ptr %cc
%d = load i256, ptr %dd
%add = add nsw i256 %c, %d
store i256 %add, ptr %a, align 8
%or = or i256 %c, 1606938044258990275541962092341162602522202993782792835301376
%add6 = add nsw i256 %or, %d
store i256 %add6, ptr %b, align 8
ret void
; CHECK-DAG: ldm r2
; CHECK-DAG: ldr {{.*}}, [r3]
; CHECK-DAG: ldr {{.*}}, [r3, #4]
; CHECK-DAG: ldr {{.*}}, [r3, #8]
; CHECK-DAG: ldr {{.*}}, [r3, #12]
; CHECK-DAG: ldr {{.*}}, [r3, #16]
; CHECK-DAG: ldr {{.*}}, [r3, #20]
; CHECK-DAG: ldr {{.*}}, [r3, #24]
; CHECK-DAG: ldr {{.*}}, [r3, #28]
; CHECK-DAG: ldr {{.*}}, [r2, #20]
; CHECK-DAG: ldr {{.*}}, [r2, #24]
; CHECK-DAG: ldr {{.*}}, [r2, #28]
; CHECK-DAG: stm r0
; CHECK-DAG: str {{.*}}, [r0, #20]
; CHECK-DAG: str {{.*}}, [r0, #24]
; CHECK-DAG: str {{.*}}, [r0, #28]
; CHECK-DAG: stm r1
; CHECK-DAG: str {{.*}}, [r1, #20]
; CHECK-DAG: str {{.*}}, [r1, #24]
; CHECK-DAG: str {{.*}}, [r1, #28]
}