thumb-ldm.ll
1.71 KB
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; RUN: llc < %s -mtriple=thumbv6m-eabi -verify-machineinstrs -o - | FileCheck %s
@X = external global [0 x i32] ; <[0 x i32]*> [#uses=5]
define i32 @t1() {
; CHECK-LABEL: t1:
; CHECK: push {r7, lr}
; CHECK: ldm
; CHECK: pop {r7, pc}
%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 0) ; <i32> [#uses=1]
%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
%tmp4 = call i32 @f1( i32 %tmp, i32 %tmp3 ) ; <i32> [#uses=1]
ret i32 %tmp4
}
define i32 @t2() {
; CHECK-LABEL: t2:
; CHECK: push {r7, lr}
; CHECK: ldm
; CHECK: pop {r7, pc}
%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
%tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 4) ; <i32> [#uses=1]
%tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
ret i32 %tmp6
}
define i32 @t3() {
; CHECK-LABEL: t3:
; CHECK: push {r7, lr}
; CHECK: ldm
; CHECK: pop {r7, pc}
%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
%tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
%tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
ret i32 %tmp6
}
declare i32 @f1(i32, i32)
declare i32 @f2(i32, i32, i32)