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| author | Richard Osborne <richard@xmos.com> | 2014-03-04 16:50:30 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2014-03-04 16:50:30 +0000 |
| commit | f41c05c7ca1245caecf6bb4f8ecacd62c59f3995 (patch) | |
| tree | 4eba59b1d95085ca44671f589d3bd3c09eaf2a61 | |
| parent | ba920ab35473a8a583608893ee0759907e4ab985 (diff) | |
| download | llvm-f41c05c7ca1245caecf6bb4f8ecacd62c59f3995.tar.gz llvm-f41c05c7ca1245caecf6bb4f8ecacd62c59f3995.tar.bz2 llvm-f41c05c7ca1245caecf6bb4f8ecacd62c59f3995.tar.xz | |
[XCore] Fix call of absolute address.
Previously for:
tail call void inttoptr (i64 65536 to void ()*)() nounwind
We would emit:
bl 65536
The immediate operand of the bl instruction is a relative offset so it is
wrong to use the absolute address here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202860 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/XCore/XCoreInstrInfo.td | 5 | ||||
| -rw-r--r-- | test/CodeGen/XCore/call.ll | 10 |
2 files changed, 12 insertions, 3 deletions
diff --git a/lib/Target/XCore/XCoreInstrInfo.td b/lib/Target/XCore/XCoreInstrInfo.td index b6906569aa..00cb705c8d 100644 --- a/lib/Target/XCore/XCoreInstrInfo.td +++ b/lib/Target/XCore/XCoreInstrInfo.td @@ -718,10 +718,10 @@ def BLACP_u10 : _FU10<0b111000, (outs), (ins i32imm:$a), "bla cp[$a]", []>; def BLACP_lu10 : _FLU10<0b111000, (outs), (ins i32imm:$a), "bla cp[$a]", []>; def BLRF_u10 : _FU10<0b110100, (outs), (ins pcrel_imm:$a), "bl $a", - [(XCoreBranchLink immU10:$a)]>; + []>; def BLRF_lu10 : _FLU10<0b110100, (outs), (ins pcrel_imm:$a), "bl $a", - [(XCoreBranchLink immU20:$a)]>; + [(XCoreBranchLink tglobaladdr:$a)]>; def BLRB_u10 : _FU10<0b110101, (outs), (ins pcrel_imm_neg:$a), "bl $a", []>; @@ -1113,7 +1113,6 @@ def WAITEU_0R : _F0R<0b0000001100, (outs), (ins), // Non-Instruction Patterns //===----------------------------------------------------------------------===// -def : Pat<(XCoreBranchLink tglobaladdr:$addr), (BLRF_lu10 tglobaladdr:$addr)>; def : Pat<(XCoreBranchLink texternalsym:$addr), (BLRF_lu10 texternalsym:$addr)>; /// sext_inreg diff --git a/test/CodeGen/XCore/call.ll b/test/CodeGen/XCore/call.ll new file mode 100644 index 0000000000..06a12f1444 --- /dev/null +++ b/test/CodeGen/XCore/call.ll @@ -0,0 +1,10 @@ +; RUN: llc < %s -march=xcore | FileCheck %s + +; CHECK-LABEL: bl_imm: +; CHECK: ldw [[R0:r[0-9]+]], cp +; CHECK: bla [[R0]] +define void @bl_imm() nounwind { +entry: + tail call void inttoptr (i64 65536 to void ()*)() nounwind + ret void +} |