1*5b4b842fSRoman Lebedev; RUN: opt < %s -passes=instsimplify,dce -S | FileCheck %s 2486ed885SArthur Eubanks 3486ed885SArthur Eubankstarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 4486ed885SArthur Eubankstarget triple = "x86_64-apple-macosx10.7.2" 5486ed885SArthur Eubanks 67f7dac71SZarko Todorovski; This is a basic correctness check for constant propagation. The add 77f7dac71SZarko Todorovski; instruction should be eliminated. 8486ed885SArthur Eubanksdefine i32 @test1(i1 %B) { 9486ed885SArthur Eubanks br i1 %B, label %BB1, label %BB2 10486ed885SArthur Eubanks 11486ed885SArthur EubanksBB1: 12486ed885SArthur Eubanks %Val = add i32 0, 0 13486ed885SArthur Eubanks br label %BB3 14486ed885SArthur Eubanks 15486ed885SArthur EubanksBB2: 16486ed885SArthur Eubanks br label %BB3 17486ed885SArthur Eubanks 18486ed885SArthur EubanksBB3: 19486ed885SArthur Eubanks; CHECK-LABEL: @test1( 20486ed885SArthur Eubanks; CHECK: %Ret = phi i32 [ 0, %BB1 ], [ 1, %BB2 ] 21486ed885SArthur Eubanks %Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ] 22486ed885SArthur Eubanks ret i32 %Ret 23486ed885SArthur Eubanks} 24486ed885SArthur Eubanks 25486ed885SArthur Eubanks 26486ed885SArthur Eubanks; PR6197 2704b944e2SNikita Popovdefine i1 @test2(ptr %f) nounwind { 28486ed885SArthur Eubanksentry: 2904b944e2SNikita Popov %V = icmp ne ptr blockaddress(@test2, %bb), null 30486ed885SArthur Eubanks br label %bb 31486ed885SArthur Eubanksbb: 32486ed885SArthur Eubanks ret i1 %V 33486ed885SArthur Eubanks 34486ed885SArthur Eubanks; CHECK-LABEL: @test2( 35486ed885SArthur Eubanks; CHECK: ret i1 true 36486ed885SArthur Eubanks} 37486ed885SArthur Eubanks 38486ed885SArthur Eubanksdefine i1 @TNAN() { 39486ed885SArthur Eubanks; CHECK-LABEL: @TNAN( 40486ed885SArthur Eubanks; CHECK: ret i1 true 41486ed885SArthur Eubanks %A = fcmp uno double 0x7FF8000000000000, 1.000000e+00 42486ed885SArthur Eubanks %B = fcmp uno double 1.230000e+02, 1.000000e+00 43486ed885SArthur Eubanks %C = or i1 %A, %B 44486ed885SArthur Eubanks ret i1 %C 45486ed885SArthur Eubanks} 46486ed885SArthur Eubanks 47486ed885SArthur Eubanksdefine i128 @vector_to_int_cast() { 48486ed885SArthur Eubanks %A = bitcast <4 x i32> <i32 1073741824, i32 1073741824, i32 1073741824, i32 1073741824> to i128 49486ed885SArthur Eubanks ret i128 %A 50486ed885SArthur Eubanks; CHECK-LABEL: @vector_to_int_cast( 51486ed885SArthur Eubanks; CHECK: ret i128 85070591750041656499021422275829170176 52486ed885SArthur Eubanks} 53486ed885SArthur Eubanks 54