forked from OSchip/llvm-project
29 lines
680 B
LLVM
29 lines
680 B
LLVM
|
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+idivl-to-divb < %s | FileCheck -check-prefix=DIV32 %s
|
||
|
|
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+idivq-to-divw < %s | FileCheck -check-prefix=DIV64 %s
|
||
|
|
|
||
|
|
define i32 @div32(i32 %a, i32 %b) {
|
||
|
|
entry:
|
||
|
|
; DIV32-LABEL: div32:
|
||
|
|
; DIV32: orl %{{.*}}, [[REG:%[a-z]+]]
|
||
|
|
; DIV32: testl $-256, [[REG]]
|
||
|
|
; DIV32: divb
|
||
|
|
; DIV64-LABEL: div32:
|
||
|
|
; DIV64-NOT: divb
|
||
|
|
%div = sdiv i32 %a, %b
|
||
|
|
ret i32 %div
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @div64(i64 %a, i64 %b) {
|
||
|
|
entry:
|
||
|
|
; DIV32-LABEL: div64:
|
||
|
|
; DIV32-NOT: divw
|
||
|
|
; DIV64-LABEL: div64:
|
||
|
|
; DIV64: orq %{{.*}}, [[REG:%[a-z]+]]
|
||
|
|
; DIV64: testq $-65536, [[REG]]
|
||
|
|
; DIV64: divw
|
||
|
|
%div = sdiv i64 %a, %b
|
||
|
|
ret i64 %div
|
||
|
|
}
|
||
|
|
|
||
|
|
|