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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-19 20:08:00 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-19 20:08:00 +0000 |
| commit | 343735288798bbd1cd2ed2750fa6cd323f12c26c (patch) | |
| tree | bcf06490bb09e659f5bba59c251acff741e3d1f5 /test | |
| parent | 139c9e1f85512c249512b830f564416e525f2999 (diff) | |
| download | external_llvm-343735288798bbd1cd2ed2750fa6cd323f12c26c.zip external_llvm-343735288798bbd1cd2ed2750fa6cd323f12c26c.tar.gz external_llvm-343735288798bbd1cd2ed2750fa6cd323f12c26c.tar.bz2 | |
TwoAddressInstructionPass doesn't really know how to merge live intervals when
lowering REG_SEQUENCE instructions.
Insert copies for REG_SEQUENCE sources not killed to avoid breaking later passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104146 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/reg_sequence.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/reg_sequence.ll b/test/CodeGen/ARM/reg_sequence.ll index 540bfca..1a27d4d 100644 --- a/test/CodeGen/ARM/reg_sequence.ll +++ b/test/CodeGen/ARM/reg_sequence.ll @@ -302,6 +302,23 @@ bb14: ; preds = %bb6 ret i32 0 } +; This test crashes the coalescer because live variables were not updated properly. +define <8 x i8> @t11(i8* %A1, i8* %A2, i8* %A3, i8* %A4, i8* %A5, i8* %A6, i8* %A7, i8* %A8, i8* %B) nounwind { + %tmp1d = call %struct.__neon_int8x8x3_t @llvm.arm.neon.vld3.v8i8(i8* %A4) ; <%struct.__neon_int8x8x3_t> [#uses=1] + %tmp2d = extractvalue %struct.__neon_int8x8x3_t %tmp1d, 0 ; <<8 x i8>> [#uses=1] + %tmp1f = call %struct.__neon_int8x8x3_t @llvm.arm.neon.vld3.v8i8(i8* %A6) ; <%struct.__neon_int8x8x3_t> [#uses=1] + %tmp2f = extractvalue %struct.__neon_int8x8x3_t %tmp1f, 0 ; <<8 x i8>> [#uses=1] + %tmp2bd = add <8 x i8> zeroinitializer, %tmp2d ; <<8 x i8>> [#uses=1] + %tmp2abcd = mul <8 x i8> zeroinitializer, %tmp2bd ; <<8 x i8>> [#uses=1] + %tmp2ef = sub <8 x i8> zeroinitializer, %tmp2f ; <<8 x i8>> [#uses=1] + %tmp2efgh = mul <8 x i8> %tmp2ef, undef ; <<8 x i8>> [#uses=2] + call void @llvm.arm.neon.vst3.v8i8(i8* %A2, <8 x i8> undef, <8 x i8> undef, <8 x i8> %tmp2efgh) + %tmp2 = sub <8 x i8> %tmp2efgh, %tmp2abcd ; <<8 x i8>> [#uses=1] + %tmp7 = mul <8 x i8> undef, %tmp2 ; <<8 x i8>> [#uses=1] + tail call void @llvm.arm.neon.vst3.v8i8(i8* %B, <8 x i8> undef, <8 x i8> undef, <8 x i8> %tmp7) + ret <8 x i8> undef +} + declare <4 x i32> @llvm.arm.neon.vld1.v4i32(i8*) nounwind readonly declare <8 x i16> @llvm.arm.neon.vld1.v8i16(i8*) nounwind readonly |