1 ; RUN: llc < %s -march=x86-64 | FileCheck %s 2 3 ; With optimization at O2 we actually get the legalized function optimized 4 ; away through legalization and stack coloring, but check that we do all of 5 ; that here and don't crash during legalization. 6 7 ; Original program: 8 ; typedef enum { A, B, C, D } P; 9 ; struct { P x[2]; } a; 10 11 ; void fn2(); 12 ; void fn1() { 13 ; int b; 14 ; unsigned c; 15 ; for (;; c++) { 16 ; fn2(); 17 ; unsigned n; 18 ; for (; c; c++) { 19 ; b = a.x[c] == A || a.x[c] == B || a.x[c] == D; 20 ; if (b) n++; 21 ; } 22 ; if (n) 23 ; for (;;) 24 ; ; 25 ; } 26 ; } 27 28 define void @fn1() { 29 ; CHECK-LABEL: fn1 30 ; CHECK: movb $0, {{.*}}(%rsp) 31 ; CHECK: cmpq $8, %rax 32 for.cond: 33 br label %vector.body 34 35 vector.body: ; preds = %vector.body, %for.cond 36 %x42 = bitcast <4 x i4> zeroinitializer to i16 37 %x43 = icmp ne i16 %x42, 0 38 %x44 = select i1 %x43, i32 undef, i32 0 39 %x72 = bitcast <4 x i1> zeroinitializer to i4 40 %x73 = icmp ne i4 %x72, 0 41 %x74 = select i1 %x73, i32 %x44, i32 undef 42 %x84 = select i1 undef, i32 undef, i32 %x74 43 %x88 = icmp eq i64 undef, 8 44 br i1 %x88, label %middle.block, label %vector.body 45 46 middle.block: ; preds = %vector.body 47 %0 = select i1 undef, i32 undef, i32 %x84 48 ret void 49 } 50
