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