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a441c8fd45
basic tests. This has been well tested on Darwin but not elsewhere. It should work provided the linker correctly resolves B.W <label in other function> which it has not seen before, at least from llvm-based compilers. I'm leaving the arm-tail-calls switch in until I see if there's any problems because of that; it might need to be disabled for some environments. llvm-svn: 106299
38 lines
1.5 KiB
LLVM
38 lines
1.5 KiB
LLVM
; RUN: llc < %s -mtriple=arm-apple-darwin | FileCheck %s
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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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; CHECK: t1:
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; CHECK: ldmia
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%tmp = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 0) ; <i32> [#uses=1]
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%tmp3 = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
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%tmp4 = tail 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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; CHECK: t2:
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; CHECK: ldmia
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%tmp = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
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%tmp3 = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
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%tmp5 = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 4) ; <i32> [#uses=1]
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%tmp6 = tail 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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; CHECK: t3:
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; CHECK: ldmib
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; CHECK: b.w _f2 @ TAILCALL
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%tmp = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
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%tmp3 = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
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%tmp5 = load i32* getelementptr ([0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
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%tmp6 = tail 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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declare i32 @f1(i32, i32)
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declare i32 @f2(i32, i32, i32)
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