Michael Kuperstein 3445cc7801 Port DemandedBits to the new pass manager.
Differential Revision: http://reviews.llvm.org/D18679

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266699 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-18 23:55:01 +00:00

13 lines
460 B
LLVM

; RUN: opt -S -demanded-bits -analyze < %s | FileCheck %s
; RUN: opt -S -disable-output -passes="print<demanded-bits>" < %s 2>&1 | FileCheck %s
; CHECK-DAG: DemandedBits: 0xFF for %1 = add nsw i32 %a, 5
; CHECK-DAG: DemandedBits: 0xFF for %3 = trunc i32 %2 to i8
; CHECK-DAG: DemandedBits: 0xFF for %2 = mul nsw i32 %1, %b
define i8 @test_mul(i32 %a, i32 %b) {
%1 = add nsw i32 %a, 5
%2 = mul nsw i32 %1, %b
%3 = trunc i32 %2 to i8
ret i8 %3
}