1 ; RUN: llc -O2 -march=x86 < %s | FileCheck %s 2 3 define i32* @fooOptnone(i32* %p, i32* %q, i32** %z) #0 { 4 entry: 5 %r = load i32, i32* %p 6 %s = load i32, i32* %q 7 %y = load i32*, i32** %z 8 9 %t0 = add i32 %r, %s 10 %t1 = add i32 %t0, 1 11 %t2 = getelementptr i32, i32* %y, i32 1 12 %t3 = getelementptr i32, i32* %t2, i32 %t1 13 14 ret i32* %t3 15 16 ; 'optnone' should use fast-isel which will not produce 'lea'. 17 ; CHECK-LABEL: fooOptnone: 18 ; CHECK-NOT: lea 19 ; CHECK: ret 20 } 21 22 define i32* @fooNormal(i32* %p, i32* %q, i32** %z) #1 { 23 entry: 24 %r = load i32, i32* %p 25 %s = load i32, i32* %q 26 %y = load i32*, i32** %z 27 28 %t0 = add i32 %r, %s 29 %t1 = add i32 %t0, 1 30 %t2 = getelementptr i32, i32* %y, i32 1 31 %t3 = getelementptr i32, i32* %t2, i32 %t1 32 33 ret i32* %t3 34 35 ; Normal ISel will produce 'lea'. 36 ; CHECK-LABEL: fooNormal: 37 ; CHECK: lea 38 ; CHECK: ret 39 } 40 41 attributes #0 = { nounwind optnone noinline } 42 attributes #1 = { nounwind } 43
