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      1 ; RUN: llc < %s -fast-isel -fast-isel-abort=1 -verify-machineinstrs -march=x86 -mattr=sse2 -no-integrated-as
      2 ; RUN: llc < %s -fast-isel -fast-isel-abort=1 -verify-machineinstrs -mtriple=x86_64-apple-darwin10 -no-integrated-as
      3 
      4 ; This tests very minimal fast-isel functionality.
      5 
      6 define i32* @foo(i32* %p, i32* %q, i32** %z) nounwind {
      7 entry:
      8   %r = load i32, i32* %p
      9   %s = load i32, i32* %q
     10   %y = load i32*, i32** %z
     11   br label %fast
     12 
     13 fast:
     14   %t0 = add i32 %r, %s
     15   %t1 = mul i32 %t0, %s
     16   %t2 = sub i32 %t1, %s
     17   %t3 = and i32 %t2, %s
     18   %t4 = xor i32 %t3, 3
     19   %t5 = xor i32 %t4, %s
     20   %t6 = add i32 %t5, 2
     21   %t7 = getelementptr i32, i32* %y, i32 1
     22   %t8 = getelementptr i32, i32* %t7, i32 %t6
     23   call void asm sideeffect "hello world", ""()
     24   br label %exit
     25 
     26 exit:
     27   ret i32* %t8
     28 }
     29 
     30 define void @bar(double* %p, double* %q) nounwind {
     31 entry:
     32   %r = load double, double* %p
     33   %s = load double, double* %q
     34   br label %fast
     35 
     36 fast:
     37   %t0 = fadd double %r, %s
     38   %t1 = fmul double %t0, %s
     39   %t2 = fsub double %t1, %s
     40   %t3 = fadd double %t2, 707.0
     41   br label %exit
     42 
     43 exit:
     44   store double %t3, double* %q
     45   ret void
     46 }
     47 
     48 define i32 @cast() nounwind {
     49 entry:
     50 	%tmp2 = bitcast i32 0 to i32
     51 	ret i32 %tmp2
     52 }
     53 
     54 define void @ptrtoint_i1(i8* %p, i1* %q) nounwind {
     55   %t = ptrtoint i8* %p to i1
     56   store i1 %t, i1* %q
     57   ret void
     58 }
     59 define i8* @inttoptr_i1(i1 %p) nounwind {
     60   %t = inttoptr i1 %p to i8*
     61   ret i8* %t
     62 }
     63 define i32 @ptrtoint_i32(i8* %p) nounwind {
     64   %t = ptrtoint i8* %p to i32
     65   ret i32 %t
     66 }
     67 define i8* @inttoptr_i32(i32 %p) nounwind {
     68   %t = inttoptr i32 %p to i8*
     69   ret i8* %t
     70 }
     71 
     72 define void @trunc_i32_i8(i32 %x, i8* %p) nounwind  {
     73 	%tmp1 = trunc i32 %x to i8
     74 	store i8 %tmp1, i8* %p
     75 	ret void
     76 }
     77 
     78 define void @trunc_i16_i8(i16 signext %x, i8* %p) nounwind  {
     79 	%tmp1 = trunc i16 %x to i8
     80 	store i8 %tmp1, i8* %p
     81 	ret void
     82 }
     83 
     84 define void @shl_i8(i8 %a, i8 %c, i8* %p) nounwind {
     85   %tmp = shl i8 %a, %c
     86   store i8 %tmp, i8* %p
     87   ret void
     88 }
     89 
     90 define void @mul_i8(i8 %a, i8* %p) nounwind {
     91   %tmp = mul i8 %a, 17
     92   store i8 %tmp, i8* %p
     93   ret void
     94 }
     95 
     96 define void @load_store_i1(i1* %p, i1* %q) nounwind {
     97   %t = load i1, i1* %p
     98   store i1 %t, i1* %q
     99   ret void
    100 }
    101 
    102 @crash_test1x = external global <2 x i32>, align 8
    103 
    104 define void @crash_test1() nounwind ssp {
    105   %tmp = load <2 x i32>, <2 x i32>* @crash_test1x, align 8
    106   %neg = xor <2 x i32> %tmp, <i32 -1, i32 -1>
    107   ret void
    108 }
    109 
    110 declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
    111 
    112 define i64* @life() nounwind {
    113   %a1 = alloca i64*, align 8
    114   %a2 = bitcast i64** %a1 to i8*
    115   call void @llvm.lifetime.start(i64 -1, i8* %a2) nounwind      
    116   %a3 = load i64*, i64** %a1, align 8
    117   ret i64* %a3
    118 }
    119 
    120 declare void @llvm.donothing() readnone
    121 
    122 ; CHECK: donada
    123 define void @donada() nounwind {
    124 entry:
    125   call void @llvm.donothing()
    126   ret void
    127 }
    128