1 ; RUN: opt < %s -constprop -die -S | FileCheck %s 2 3 target 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" 4 target triple = "x86_64-apple-macosx10.7.2" 5 6 ; This is a basic sanity check for constant propagation. The add instruction 7 ; should be eliminated. 8 define i32 @test1(i1 %B) { 9 br i1 %B, label %BB1, label %BB2 10 11 BB1: 12 %Val = add i32 0, 0 13 br label %BB3 14 15 BB2: 16 br label %BB3 17 18 BB3: 19 ; CHECK-LABEL: @test1( 20 ; CHECK: %Ret = phi i32 [ 0, %BB1 ], [ 1, %BB2 ] 21 %Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ] 22 ret i32 %Ret 23 } 24 25 26 ; PR6197 27 define i1 @test2(i8* %f) nounwind { 28 entry: 29 %V = icmp ne i8* blockaddress(@test2, %bb), null 30 br label %bb 31 bb: 32 ret i1 %V 33 34 ; CHECK-LABEL: @test2( 35 ; CHECK: ret i1 true 36 } 37 38 define i1 @TNAN() { 39 ; CHECK-LABEL: @TNAN( 40 ; CHECK: ret i1 true 41 %A = fcmp uno double 0x7FF8000000000000, 1.000000e+00 42 %B = fcmp uno double 1.230000e+02, 1.000000e+00 43 %C = or i1 %A, %B 44 ret i1 %C 45 } 46 47 define i128 @vector_to_int_cast() { 48 %A = bitcast <4 x i32> <i32 1073741824, i32 1073741824, i32 1073741824, i32 1073741824> to i128 49 ret i128 %A 50 ; CHECK-LABEL: @vector_to_int_cast( 51 ; CHECK: ret i128 85070591750041656499021422275829170176 52 } 53 54
