ldr.ll
1.52 KB
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; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
define i32 @f1(i32* %v) {
; CHECK-LABEL: f1:
; CHECK: ldr r0
entry:
%tmp = load i32, i32* %v
ret i32 %tmp
}
define i32 @f2(i32* %v) {
; CHECK-LABEL: f2:
; CHECK: ldr r0
entry:
%tmp2 = getelementptr i32, i32* %v, i32 1023
%tmp = load i32, i32* %tmp2
ret i32 %tmp
}
define i32 @f3(i32* %v) {
; CHECK-LABEL: f3:
; CHECK: mov
; CHECK: ldr r0
entry:
%tmp2 = getelementptr i32, i32* %v, i32 1024
%tmp = load i32, i32* %tmp2
ret i32 %tmp
}
define i32 @f4(i32 %base) {
; CHECK-LABEL: f4:
; CHECK-NOT: mvn
; CHECK: ldr r0
entry:
%tmp1 = sub i32 %base, 128
%tmp2 = inttoptr i32 %tmp1 to i32*
%tmp3 = load i32, i32* %tmp2
ret i32 %tmp3
}
define i32 @f5(i32 %base, i32 %offset) {
; CHECK-LABEL: f5:
; CHECK: ldr r0
entry:
%tmp1 = add i32 %base, %offset
%tmp2 = inttoptr i32 %tmp1 to i32*
%tmp3 = load i32, i32* %tmp2
ret i32 %tmp3
}
define i32 @f6(i32 %base, i32 %offset) {
; CHECK-LABEL: f6:
; CHECK: ldr r0{{.*}}lsl{{.*}}
entry:
%tmp1 = shl i32 %offset, 2
%tmp2 = add i32 %base, %tmp1
%tmp3 = inttoptr i32 %tmp2 to i32*
%tmp4 = load i32, i32* %tmp3
ret i32 %tmp4
}
define i32 @f7(i32 %base, i32 %offset) {
; CHECK-LABEL: f7:
; CHECK: ldr r0{{.*}}lsr{{.*}}
entry:
%tmp1 = lshr i32 %offset, 2
%tmp2 = add i32 %base, %tmp1
%tmp3 = inttoptr i32 %tmp2 to i32*
%tmp4 = load i32, i32* %tmp3
ret i32 %tmp4
}