forked from OSchip/llvm-project
78 lines
2.8 KiB
LLVM
78 lines
2.8 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 | FileCheck %s -check-prefix=ALL -check-prefix=CHECK
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; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 -arm-assume-misaligned-load-store | FileCheck %s -check-prefix=ALL -check-prefix=CONSERVATIVE
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@X = external global [0 x i32] ; <[0 x i32]*> [#uses=5]
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define i32 @t1() {
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; ALL-LABEL: t1:
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; ALL: push {r7, lr}
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; CHECK: ldrd
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; CONSERVATIVE-NOT: ldrd
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; CONSERVATIVE-NOT: ldm
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; ALL: pop {r7, pc}
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%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 0) ; <i32> [#uses=1]
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%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
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%tmp4 = call i32 @f1( i32 %tmp, i32 %tmp3 ) ; <i32> [#uses=1]
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ret i32 %tmp4
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}
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define i32 @t2() {
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; ALL-LABEL: t2:
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; ALL: push {r7, lr}
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; CHECK: ldm
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; CONSERVATIVE-NOT: ldrd
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; CONSERVATIVE-NOT: ldm
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; ALL: pop {r7, pc}
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%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
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%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
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%tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 4) ; <i32> [#uses=1]
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%tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
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ret i32 %tmp6
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}
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define i32 @t3() {
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; ALL-LABEL: t3:
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; ALL: push {r7, lr}
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; CHECK: ldm
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; CONSERVATIVE-NOT: ldrd
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; CONSERVATIVE-NOT: ldm
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; ALL: pop {r7, pc}
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%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
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%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
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%tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
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%tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
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ret i32 %tmp6
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}
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@g = common global i32* null
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define void @t4(i32 %a0, i32 %a1, i32 %a2) {
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; ALL-LABEL: t4:
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; ALL: stm.w sp, {r0, r1, r2}
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; ALL: blx _ext
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; ALL: ldm.w sp, {r0, r1, r2}
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; ALL: blx _f2
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%arr = alloca [4 x i32], align 4
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%p0 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 0
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%p1 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 1
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%p2 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 2
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store i32* %p0, i32** @g, align 8
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store i32 %a0, i32* %p0, align 4
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store i32 %a1, i32* %p1, align 4
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store i32 %a2, i32* %p2, align 4
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call void @ext()
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%v0 = load i32, i32* %p0, align 4
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%v1 = load i32, i32* %p1, align 4
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%v2 = load i32, i32* %p2, align 4
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call i32 @f2(i32 %v0, i32 %v1, i32 %v2)
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ret void
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}
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declare i32 @f1(i32, i32)
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declare i32 @f2(i32, i32, i32)
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declare void @ext()
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