File: 2009-04-07-MulPromoteToI96.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
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
}