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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/bswap.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

69 lines
2.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O0 -mtriple=mipsel-linux-gnu -global-isel -verify-machineinstrs %s -o -| FileCheck %s -check-prefixes=MIPS32
; RUN: llc -O0 -mtriple=mipsel-linux-gnu -global-isel -mattr=+mips32r2 -verify-machineinstrs %s -o -| FileCheck %s -check-prefixes=MIPS32R2
declare i32 @llvm.bswap.i32(i32)
define i32 @bswap_i32(i32 %x) {
; MIPS32-LABEL: bswap_i32:
; MIPS32: # %bb.0: # %entry
; MIPS32-NEXT: sll $2, $4, 24
; MIPS32-NEXT: srl $1, $4, 24
; MIPS32-NEXT: or $1, $1, $2
; MIPS32-NEXT: andi $2, $4, 65280
; MIPS32-NEXT: sll $2, $2, 8
; MIPS32-NEXT: or $1, $1, $2
; MIPS32-NEXT: srl $2, $4, 8
; MIPS32-NEXT: andi $2, $2, 65280
; MIPS32-NEXT: or $2, $1, $2
; MIPS32-NEXT: jr $ra
; MIPS32-NEXT: nop
;
; MIPS32R2-LABEL: bswap_i32:
; MIPS32R2: # %bb.0: # %entry
; MIPS32R2-NEXT: wsbh $1, $4
; MIPS32R2-NEXT: rotr $2, $1, 16
; MIPS32R2-NEXT: jr $ra
; MIPS32R2-NEXT: nop
entry:
%0 = tail call i32 @llvm.bswap.i32(i32 %x)
ret i32 %0
}
declare i64 @llvm.bswap.i64(i64)
define i64 @bswap_i64(i64 %x) {
; MIPS32-LABEL: bswap_i64:
; MIPS32: # %bb.0: # %entry
; MIPS32-NEXT: sll $2, $5, 24
; MIPS32-NEXT: srl $1, $5, 24
; MIPS32-NEXT: or $1, $1, $2
; MIPS32-NEXT: andi $2, $5, 65280
; MIPS32-NEXT: sll $2, $2, 8
; MIPS32-NEXT: or $1, $1, $2
; MIPS32-NEXT: srl $2, $5, 8
; MIPS32-NEXT: andi $2, $2, 65280
; MIPS32-NEXT: or $2, $1, $2
; MIPS32-NEXT: sll $3, $4, 24
; MIPS32-NEXT: srl $1, $4, 24
; MIPS32-NEXT: or $1, $1, $3
; MIPS32-NEXT: andi $3, $4, 65280
; MIPS32-NEXT: sll $3, $3, 8
; MIPS32-NEXT: or $1, $1, $3
; MIPS32-NEXT: srl $3, $4, 8
; MIPS32-NEXT: andi $3, $3, 65280
; MIPS32-NEXT: or $3, $1, $3
; MIPS32-NEXT: jr $ra
; MIPS32-NEXT: nop
;
; MIPS32R2-LABEL: bswap_i64:
; MIPS32R2: # %bb.0: # %entry
; MIPS32R2-NEXT: wsbh $1, $5
; MIPS32R2-NEXT: rotr $2, $1, 16
; MIPS32R2-NEXT: wsbh $1, $4
; MIPS32R2-NEXT: rotr $3, $1, 16
; MIPS32R2-NEXT: jr $ra
; MIPS32R2-NEXT: nop
entry:
%0 = tail call i64 @llvm.bswap.i64(i64 %x)
ret i64 %0
}