File: 2009-04-07-MulPromoteToI96.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (13 lines) | stat: -rw-r--r-- 478 bytes parent folder | download | duplicates (23) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
; RUN: opt < %s -instcombine -S | grep "mul i64"
; rdar://6762288

; Instcombine should not promote the mul to i96 because it is definitely
; not a legal type for the target, and we don't want a libcall.

define i96 @test(i96 %a.4, i96 %b.2) {
	%tmp1086 = trunc i96 %a.4 to i64		; <i64> [#uses=1]
	%tmp836 = trunc i96 %b.2 to i64		; <i64> [#uses=1]
	%mul185 = mul i64 %tmp1086, %tmp836		; <i64> [#uses=1]
	%tmp544 = zext i64 %mul185 to i96		; <i96> [#uses=1]
	ret i96 %tmp544
}