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| author | Petar Avramovic <Petar.Avramovic@rt-rk.com> | 2019-03-15 07:07:50 +0000 |
|---|---|---|
| committer | Petar Avramovic <Petar.Avramovic@rt-rk.com> | 2019-03-15 07:07:50 +0000 |
| commit | 3e0da146ac2ad98e7463ce4114b466283ca1345c (patch) | |
| tree | b42d7702b65ebf1f950eab6d8ad42e41bd4bd813 /llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll | |
| parent | 76a7ecb3aeb4ed43ee146dd532f322bbff2adb8f (diff) | |
| download | bcm5719-llvm-3e0da146ac2ad98e7463ce4114b466283ca1345c.tar.gz bcm5719-llvm-3e0da146ac2ad98e7463ce4114b466283ca1345c.zip | |
[MIPS GlobalISel] Improve selection of constants
Certain 32 bit constants can be generated with a single instruction
instead of two. Implement materialize32BitImm function for MIPS32.
Differential Revision: https://reviews.llvm.org/D59369
llvm-svn: 356238
Diffstat (limited to 'llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll')
| -rw-r--r-- | llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll b/llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll index 2753fe157a5..4babe892510 100644 --- a/llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll +++ b/llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/select.ll @@ -4,8 +4,7 @@ define i8 @select_i8(i1 %test, i8 %a, i8 %b) { ; MIPS32-LABEL: select_i8: ; MIPS32: # %bb.0: # %entry -; MIPS32-NEXT: lui $1, 0 -; MIPS32-NEXT: ori $1, $1, 1 +; MIPS32-NEXT: ori $1, $zero, 1 ; MIPS32-NEXT: and $1, $4, $1 ; MIPS32-NEXT: movn $6, $5, $1 ; MIPS32-NEXT: move $2, $6 @@ -19,8 +18,7 @@ entry: define i16 @select_i16(i1 %test, i16 %a, i16 %b) { ; MIPS32-LABEL: select_i16: ; MIPS32: # %bb.0: # %entry -; MIPS32-NEXT: lui $1, 0 -; MIPS32-NEXT: ori $1, $1, 1 +; MIPS32-NEXT: ori $1, $zero, 1 ; MIPS32-NEXT: and $1, $4, $1 ; MIPS32-NEXT: movn $6, $5, $1 ; MIPS32-NEXT: move $2, $6 @@ -34,8 +32,7 @@ entry: define i32 @select_i32(i1 %test, i32 %a, i32 %b) { ; MIPS32-LABEL: select_i32: ; MIPS32: # %bb.0: # %entry -; MIPS32-NEXT: lui $1, 0 -; MIPS32-NEXT: ori $1, $1, 1 +; MIPS32-NEXT: ori $1, $zero, 1 ; MIPS32-NEXT: and $1, $4, $1 ; MIPS32-NEXT: movn $6, $5, $1 ; MIPS32-NEXT: move $2, $6 @@ -49,8 +46,7 @@ entry: define i32* @select_ptr(i1 %test, i32* %a, i32* %b) { ; MIPS32-LABEL: select_ptr: ; MIPS32: # %bb.0: # %entry -; MIPS32-NEXT: lui $1, 0 -; MIPS32-NEXT: ori $1, $1, 1 +; MIPS32-NEXT: ori $1, $zero, 1 ; MIPS32-NEXT: and $1, $4, $1 ; MIPS32-NEXT: movn $6, $5, $1 ; MIPS32-NEXT: move $2, $6 @@ -66,8 +62,7 @@ define i32 @select_with_negation(i32 %a, i32 %b, i32 %x, i32 %y) { ; MIPS32: # %bb.0: # %entry ; MIPS32-NEXT: slt $4, $4, $5 ; MIPS32-NEXT: not $4, $4 -; MIPS32-NEXT: lui $5, 0 -; MIPS32-NEXT: ori $5, $5, 1 +; MIPS32-NEXT: ori $5, $zero, 1 ; MIPS32-NEXT: and $4, $4, $5 ; MIPS32-NEXT: movn $7, $6, $4 ; MIPS32-NEXT: move $2, $7 |
