| # RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=mips-prelegalizer-combiner -verify-machineinstrs -debug %s -o - 2>&1 | FileCheck %s -check-prefixes=MIPS32 |
| # REQUIRES: asserts |
| --- | |
| |
| define void @f() {entry: ret void} |
| |
| ... |
| --- |
| # Check that we report attempts to combine each instruction from the input |
| # since none of them gets changed in this test. |
| |
| # MIPS32-LABEL: Generic MI Combiner for: f |
| # MIPS32: Try combining %0:_(s32) = COPY $a0 |
| # MIPS32: Try combining %1:_(s32) = COPY $a1 |
| # MIPS32: Try combining %2:_(s32) = G_ADD %1:_, %0:_ |
| # MIPS32: Try combining $v0 = COPY %2:_(s32) |
| # MIPS32: Try combining RetRA implicit $v0 |
| name: f |
| alignment: 2 |
| tracksRegLiveness: true |
| body: | |
| bb.1.entry: |
| liveins: $a0, $a1 |
| |
| ; MIPS32-LABEL: name: f |
| ; MIPS32: liveins: $a0, $a1 |
| ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0 |
| ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1 |
| ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY1]], [[COPY]] |
| ; MIPS32: $v0 = COPY [[ADD]](s32) |
| ; MIPS32: RetRA implicit $v0 |
| %0:_(s32) = COPY $a0 |
| %1:_(s32) = COPY $a1 |
| %2:_(s32) = G_ADD %1, %0 |
| $v0 = COPY %2(s32) |
| RetRA implicit $v0 |
| |
| ... |