File: ldr_pre.ll

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llvm-toolchain-21 1%3A21.1.6-2
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; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
; RUN: llc -mtriple=arm-eabi -mcpu=swift %s -o - | FileCheck %s

; CHECK-LABEL: test1:
; CHECK: ldr {{.*!}}
; CHECK-NOT: ldr
define ptr @test1(ptr %X, ptr %dest) {
        %Y = getelementptr i32, ptr %X, i32 4               ; <ptr> [#uses=2]
        %A = load i32, ptr %Y               ; <i32> [#uses=1]
        store i32 %A, ptr %dest
        ret ptr %Y
}

; CHECK-LABEL: test2:
; CHECK: ldr {{.*!}}
; CHECK-NOT: ldr
define i32 @test2(i32 %a, i32 %b, i32 %c) {
        %tmp1 = sub i32 %a, %b          ; <i32> [#uses=2]
        %tmp2 = inttoptr i32 %tmp1 to ptr              ; <ptr> [#uses=1]
        %tmp3 = load i32, ptr %tmp2         ; <i32> [#uses=1]
        %tmp4 = sub i32 %tmp1, %c               ; <i32> [#uses=1]
        %tmp5 = add i32 %tmp4, %tmp3            ; <i32> [#uses=1]
        ret i32 %tmp5
}