diff options
| author | Rafael Espindola <rafael.espindola@gmail.com> | 2009-03-13 18:37:06 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2009-03-13 18:37:06 +0000 |
| commit | 9b922aa3b8c781ef9ecb3c82e8ea7d7874e65861 (patch) | |
| tree | 4e9050ebecc917ee9ead0ed1960ca87c3b492fd6 | |
| parent | b14cda3c0dea98bdd44c2f209afaf4fb36d42a8a (diff) | |
| download | external_llvm-9b922aa3b8c781ef9ecb3c82e8ea7d7874e65861.zip external_llvm-9b922aa3b8c781ef9ecb3c82e8ea7d7874e65861.tar.gz external_llvm-9b922aa3b8c781ef9ecb3c82e8ea7d7874e65861.tar.bz2 | |
Improve sext and zext of TLS variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66922 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 36 | ||||
| -rw-r--r-- | test/CodeGen/X86/tls13.ll | 21 | ||||
| -rw-r--r-- | test/CodeGen/X86/tls14.ll | 21 |
3 files changed, 78 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 64d0021..19703e9 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -2947,6 +2947,24 @@ def TLS_ext16_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), SegGS; let AddedComplexity = 15 in +def TLS_sext16_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), + "movswl\t%gs:${src:mem}, $dst", + [(set GR32:$dst, + (sextloadi32i16 + (add X86TLStp, + (X86Wrapper tglobaltlsaddr:$src))))]>, + SegGS; + +let AddedComplexity = 15 in +def TLS_zext16_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), + "movzwl\t%gs:${src:mem}, $dst", + [(set GR32:$dst, + (zextloadi32i16 + (add X86TLStp, + (X86Wrapper tglobaltlsaddr:$src))))]>, + SegGS; + +let AddedComplexity = 15 in def TLS_ext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), "movzbl\t%gs:${src:mem}, $dst", [(set GR32:$dst, @@ -2955,6 +2973,24 @@ def TLS_ext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), (X86Wrapper tglobaltlsaddr:$src))))]>, SegGS; +let AddedComplexity = 15 in +def TLS_sext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), + "movsbl\t%gs:${src:mem}, $dst", + [(set GR32:$dst, + (sextloadi32i8 + (add X86TLStp, + (X86Wrapper tglobaltlsaddr:$src))))]>, + SegGS; + +let AddedComplexity = 15 in +def TLS_zext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src), + "movzbl\t%gs:${src:mem}, $dst", + [(set GR32:$dst, + (zextloadi32i8 + (add X86TLStp, + (X86Wrapper tglobaltlsaddr:$src))))]>, + SegGS; + def TLS_tp : I<0x8B, Pseudo, (outs GR32:$dst), (ins), "movl\t%gs:0, $dst", [(set GR32:$dst, X86TLStp)]>, SegGS; diff --git a/test/CodeGen/X86/tls13.ll b/test/CodeGen/X86/tls13.ll new file mode 100644 index 0000000..3089443 --- /dev/null +++ b/test/CodeGen/X86/tls13.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-linux-gnu > %t +; RUN: grep {movswl %gs:i@NTPOFF, %eax} %t +; RUN: grep {movzwl %gs:j@NTPOFF, %eax} %t + +@i = thread_local global i16 0 +@j = thread_local global i16 0 + +define void @f() nounwind optsize { +entry: + %0 = load i16* @i, align 2 + %1 = sext i16 %0 to i32 + tail call void @g(i32 %1) nounwind + %2 = load i16* @j, align 2 + %3 = zext i16 %2 to i32 + tail call void @h(i32 %3) nounwind + ret void +} + +declare void @g(i32) + +declare void @h(i32) diff --git a/test/CodeGen/X86/tls14.ll b/test/CodeGen/X86/tls14.ll new file mode 100644 index 0000000..d3401b6 --- /dev/null +++ b/test/CodeGen/X86/tls14.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-linux-gnu > %t +; RUN: grep {movsbl %gs:i@NTPOFF, %eax} %t +; RUN: grep {movzbl %gs:j@NTPOFF, %eax} %t + +@i = thread_local global i8 0 +@j = thread_local global i8 0 + +define void @f() nounwind optsize { +entry: + %0 = load i8* @i, align 2 + %1 = sext i8 %0 to i32 + tail call void @g(i32 %1) nounwind + %2 = load i8* @j, align 2 + %3 = zext i8 %2 to i32 + tail call void @h(i32 %3) nounwind + ret void +} + +declare void @g(i32) + +declare void @h(i32) |