File: 2009-04-07-MulPromoteToI96.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (13 lines) | stat: -rw-r--r-- 478 bytes parent folder | download | duplicates (24)
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
}