diff options
| author | Reed Kotler <rkotler@mips.com> | 2012-10-26 03:09:34 +0000 |
|---|---|---|
| committer | Reed Kotler <rkotler@mips.com> | 2012-10-26 03:09:34 +0000 |
| commit | 28a6214b59c0896695e478c57c485cc85f436528 (patch) | |
| tree | f47fbfbe2bd660036ad8b0b9a1956fb6acfa30f9 | |
| parent | d2930d364adcaef1eac0e1d5d8dc0fa4b7616f45 (diff) | |
| download | external_llvm-28a6214b59c0896695e478c57c485cc85f436528.zip external_llvm-28a6214b59c0896695e478c57c485cc85f436528.tar.gz external_llvm-28a6214b59c0896695e478c57c485cc85f436528.tar.bz2 | |
implement large (>16 bit) constant loading.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166749 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/Mips/Mips16InstrInfo.td | 4 | ||||
| -rw-r--r-- | test/CodeGen/Mips/i32k.ll | 17 |
2 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/Mips/Mips16InstrInfo.td b/lib/Target/Mips/Mips16InstrInfo.td index c4949ce..74ddc99 100644 --- a/lib/Target/Mips/Mips16InstrInfo.td +++ b/lib/Target/Mips/Mips16InstrInfo.td @@ -971,6 +971,10 @@ class SetCC_I16<PatFrag cond_op, PatLeaf imm_type, Instruction I>: Mips16Pat<(cond_op CPU16Regs:$rx, imm_type:$imm16), (I CPU16Regs:$rx, imm_type:$imm16)>; +// Large (>16 bit) immediate loads +def : Mips16Pat<(i32 imm:$imm), + (OrRxRxRy16 (SllX16 (LiRxImmX16 (HI16 imm:$imm)), 16), + (LiRxImmX16 (LO16 imm:$imm)))>; // // Some branch conditional patterns are not generated by llvm at this time. diff --git a/test/CodeGen/Mips/i32k.ll b/test/CodeGen/Mips/i32k.ll new file mode 100644 index 0000000..c6da8b1 --- /dev/null +++ b/test/CodeGen/Mips/i32k.ll @@ -0,0 +1,17 @@ +; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16a +; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16b + +@.str = private unnamed_addr constant [4 x i8] c"%i\0A\00", align 1 + +define i32 @main() nounwind { +entry: + %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32 1075344593) nounwind +; 16a: li ${{[0-9]+}}, 29905 +; 16b: li ${{[0-9]+}}, 16408 + %call1 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32 -1075344593) nounwind +; 16a: li ${{[0-9]+}}, 49127 +; 16b: li ${{[0-9]+}}, 35631 + ret i32 0 +} + +declare i32 @printf(i8* nocapture, ...) nounwind |