1 ; RUN: llc -fast-isel -O0 -mcpu=generic -mtriple=i386-apple-darwin10 -relocation-model=pic < %s | FileCheck %s 2 3 ; This should use flds to set the return value. 4 ; CHECK-LABEL: test0: 5 ; CHECK: flds 6 ; CHECK: retl 7 @G = external global float 8 define float @test0() nounwind { 9 %t = load float, float* @G 10 ret float %t 11 } 12 13 ; This should pop 4 bytes on return. 14 ; CHECK-LABEL: test1: 15 ; CHECK: retl $4 16 define void @test1({i32, i32, i32, i32}* sret %p) nounwind { 17 store {i32, i32, i32, i32} zeroinitializer, {i32, i32, i32, i32}* %p 18 ret void 19 } 20 21 ; Properly initialize the pic base. 22 ; CHECK-LABEL: test2: 23 ; CHECK-NOT: HHH 24 ; CHECK: call{{.*}}L2$pb 25 ; CHECK-NEXT: L2$pb: 26 ; CHECK-NEXT: pop 27 ; CHECK: HHH 28 ; CHECK: retl 29 @HHH = external global i32 30 define i32 @test2() nounwind { 31 %t = load i32, i32* @HHH 32 ret i32 %t 33 } 34 35 ; Check that we fast-isel sret, and handle the callee-pops behavior correctly. 36 %struct.a = type { i64, i64, i64 } 37 define void @test3() nounwind ssp { 38 entry: 39 %tmp = alloca %struct.a, align 8 40 call void @test3sret(%struct.a* sret %tmp) 41 ret void 42 ; CHECK-LABEL: test3: 43 ; CHECK: subl $44 44 ; CHECK: leal 16(%esp) 45 ; CHECK: calll _test3sret 46 ; CHECK: addl $40 47 } 48 declare void @test3sret(%struct.a* sret) 49 50 ; Check that fast-isel sret works with fastcc (and does not callee-pop) 51 define void @test4() nounwind ssp { 52 entry: 53 %tmp = alloca %struct.a, align 8 54 call fastcc void @test4fastccsret(%struct.a* sret %tmp) 55 ret void 56 ; CHECK-LABEL: test4: 57 ; CHECK: subl $28 58 ; CHECK: leal (%esp), %ecx 59 ; CHECK: calll _test4fastccsret 60 ; CHECK: addl $28 61 } 62 declare fastcc void @test4fastccsret(%struct.a* sret) 63 64 65 ; Check that fast-isel cleans up when it fails to lower a call instruction. 66 define void @test5() { 67 entry: 68 %call = call i32 @test5dllimport(i32 42) 69 ret void 70 ; CHECK-LABEL: test5: 71 ; Local value area is still there: 72 ; CHECK: movl $42, {{%[a-z]+}} 73 ; Fast-ISel's arg push is not here: 74 ; CHECK-NOT: movl $42, (%esp) 75 ; SDag-ISel's arg push: 76 ; CHECK: movl %esp, [[REGISTER:%[a-z]+]] 77 ; CHECK: movl $42, ([[REGISTER]]) 78 ; CHECK: movl __imp__test5dllimport 79 } 80 declare dllimport i32 @test5dllimport(i32) 81
