File: lea.ll

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (37 lines) | stat: -rw-r--r-- 957 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-nacl | FileCheck %s

define i32 @test1(i32 %x) nounwind {
        %tmp1 = shl i32 %x, 3
        %tmp2 = add i32 %tmp1, 7
        ret i32 %tmp2
; CHECK-LABEL: test1:
; CHECK:    leal 7(,%r[[A0:di|cx]],8), %eax
}


; ISel the add of -4 with a neg and use an lea for the rest of the
; arithemtic.
define i32 @test2(i32 %x_offs) nounwind readnone {
entry:
	%t0 = icmp sgt i32 %x_offs, 4
	br i1 %t0, label %bb.nph, label %bb2

bb.nph:
	%tmp = add i32 %x_offs, -5
	%tmp6 = lshr i32 %tmp, 2
	%tmp7 = mul i32 %tmp6, -4
	%tmp8 = add i32 %tmp7, %x_offs
	%tmp9 = add i32 %tmp8, -4
	ret i32 %tmp9

bb2:
	ret i32 %x_offs
; CHECK-LABEL: test2:
; CHECK:        leal    -5(%r[[A0:..]]), %eax
; CHECK:	andl	$-4, %eax
; CHECK:	negl	%eax
; CHECK:	leal	-4(%r[[A0]],%rax), %eax
}