basic.ll
477 Bytes
; RUN: opt -S -demanded-bits -analyze -enable-new-pm=0 < %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
}