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137 lines
2.4 KiB
LLVM
137 lines
2.4 KiB
LLVM
; RUN: llc -march=mips < %s | FileCheck %s -check-prefixes=ALL,MIPS
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; RUN: llc -march=mips < %s -mattr=+micromips | FileCheck %s -check-prefixes=ALL,MM
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; Test the patterns used for constant materialization.
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; Constants generated using li16
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define i32 @Li16LowBoundary() {
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entry:
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; ALL-LABEL: Li16LowBoundary:
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; MIPS: addiu $2, $zero, -1
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; MM: li16 $2, -1
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; ALL-NOT: lui
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; ALL-NOT: ori
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; MIPS-NOT: li16
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; MM-NOT: addiu
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ret i32 -1
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}
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define i32 @Li16HighBoundary() {
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entry:
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; ALL-LABEL: Li16HighBoundary:
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; MIPS: addiu $2, $zero, 126
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; MM: li16 $2, 126
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; ALL-NOT: lui
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; ALL-NOT: ori
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; MM-NOT: addiu
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; MIPS-NOT: li16
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ret i32 126
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}
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; Constants generated using addiu
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define i32 @AddiuLowBoundary() {
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entry:
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; ALL-LABEL: AddiuLowBoundary:
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; ALL: addiu $2, $zero, -32768
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; ALL-NOT: lui
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; ALL-NOT: ori
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; ALL-NOT: li16
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ret i32 -32768
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}
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define i32 @AddiuZero() {
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entry:
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; ALL-LABEL: AddiuZero:
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; MIPS: addiu $2, $zero, 0
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; MM: li16 $2, 0
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; ALL-NOT: lui
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; ALL-NOT: ori
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; MIPS-NOT: li16
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; MM-NOT: addiu
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ret i32 0
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}
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define i32 @AddiuHighBoundary() {
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entry:
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; ALL-LABEL: AddiuHighBoundary:
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; ALL: addiu $2, $zero, 32767
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; ALL-NOT: lui
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; ALL-NOT: ori
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; ALL-NOT: li16
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ret i32 32767
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}
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; Constants generated using ori
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define i32 @OriLowBoundary() {
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entry:
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; ALL-LABEL: OriLowBoundary:
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; ALL: ori $2, $zero, 32768
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; ALL-NOT: addiu
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; ALL-NOT: lui
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; ALL-NOT: li16
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ret i32 32768
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}
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define i32 @OriHighBoundary() {
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entry:
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; ALL-LABEL: OriHighBoundary:
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; ALL: ori $2, $zero, 65535
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; ALL-NOT: addiu
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; ALL-NOT: lui
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; ALL-NOT: li16
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ret i32 65535
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}
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; Constants generated using lui
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define i32 @LuiPositive() {
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entry:
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; ALL-LABEL: LuiPositive:
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; ALL: lui $2, 1
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; ALL-NOT: addiu
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; ALL-NOT: ori
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; ALL-NOT: li16
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ret i32 65536
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}
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define i32 @LuiNegative() {
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entry:
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; ALL-LABEL: LuiNegative:
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; ALL: lui $2, 65535
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; ALL-NOT: addiu
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; ALL-NOT: ori
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; ALL-NOT: li16
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ret i32 -65536
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}
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; Constants generated using a combination of lui and ori
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define i32 @LuiWithLowBitsSet() {
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entry:
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; ALL-LABEL: LuiWithLowBitsSet:
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; ALL: lui $1, 1
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; ALL: ori $2, $1, 1
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; ALL-NOT: addiu
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; ALL-NOT: li16
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ret i32 65537
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}
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define i32 @BelowAddiuLowBoundary() {
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entry:
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; ALL-LABEL: BelowAddiuLowBoundary:
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; ALL: lui $1, 65535
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; ALL: ori $2, $1, 32767
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; ALL-NOT: addiu
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; ALL-NOT: li16
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ret i32 -32769
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}
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