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| author | Jozef Kolek <jozef.kolek@imgtec.com> | 2015-02-13 17:51:27 +0000 |
|---|---|---|
| committer | Jozef Kolek <jozef.kolek@imgtec.com> | 2015-02-13 17:51:27 +0000 |
| commit | 650a61a9438d3979679e19f38ad3972542cb155c (patch) | |
| tree | 79d66fd4f09e4db8a4f88b3c4c00e6c71f22fb65 /llvm/test/CodeGen | |
| parent | 8a9d23bf5349a121903aaf3c3096da07da9c3b00 (diff) | |
| download | bcm5719-llvm-650a61a9438d3979679e19f38ad3972542cb155c.tar.gz bcm5719-llvm-650a61a9438d3979679e19f38ad3972542cb155c.zip | |
[mips][microMIPS] Delay slot filler: Replace the microMIPS JR with the JRC
This patch adds functionality in MIPS delay slot filler such as if delay slot
filler have to put NOP instruction into the delay slot of microMIPS JR
instruction, then instead of emitting NOP this instruction is replaced by
compact jump instruction JRC.
Differential Revision: http://reviews.llvm.org/D7522
llvm-svn: 229128
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/Mips/longbranch.ll | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/Mips/micromips-compact-jump.ll | 11 | ||||
| -rw-r--r-- | llvm/test/CodeGen/Mips/micromips-delay-slot-jr.ll | 6 |
3 files changed, 14 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/Mips/longbranch.ll b/llvm/test/CodeGen/Mips/longbranch.ll index 821ced8e7b8..f61b250491e 100644 --- a/llvm/test/CodeGen/Mips/longbranch.ll +++ b/llvm/test/CodeGen/Mips/longbranch.ll @@ -126,8 +126,7 @@ end: ; MICROMIPS: li16 $[[R2:[0-9]+]], 1 ; MICROMIPS: sw16 $[[R2]], 0($[[R1]]) ; MICROMIPS: $[[BB2]]: -; MICROMIPS: jr $ra -; MICROMIPS: nop +; MICROMIPS: jrc $ra ; Check the NaCl version. Check that sp change is not in the branch delay slot diff --git a/llvm/test/CodeGen/Mips/micromips-compact-jump.ll b/llvm/test/CodeGen/Mips/micromips-compact-jump.ll new file mode 100644 index 00000000000..70cff84e967 --- /dev/null +++ b/llvm/test/CodeGen/Mips/micromips-compact-jump.ll @@ -0,0 +1,11 @@ +; RUN: llc -march=mipsel -mcpu=mips32r2 -mattr=+micromips \ +; RUN: -disable-mips-delay-filler -O3 < %s | FileCheck %s + +define i32 @foo(i32 signext %a) #0 { +entry: + ret i32 0 +} + +declare i32 @bar(i32 signext) #1 + +; CHECK: jrc diff --git a/llvm/test/CodeGen/Mips/micromips-delay-slot-jr.ll b/llvm/test/CodeGen/Mips/micromips-delay-slot-jr.ll index df593b35e2a..09a98c2a7d1 100644 --- a/llvm/test/CodeGen/Mips/micromips-delay-slot-jr.ll +++ b/llvm/test/CodeGen/Mips/micromips-delay-slot-jr.ll @@ -29,8 +29,7 @@ declare i32 @puts(i8* nocapture readonly) #1 !3 = !{!"omnipotent char", !4, i64 0} !4 = !{!"Simple C/C++ TBAA"} -; CHECK: jr -; CHECK-NEXT: nop +; CHECK: jrc %struct.foostruct = type { [3 x float] } %struct.barstruct = type { %struct.foostruct, float } @@ -43,6 +42,5 @@ define float* @spooky(i32 signext %i) #0 { } ; CHECK: spooky: -; CHECK: jr $ra -; CHECK-NEXT: nop +; CHECK: jrc $ra |
