| Ulrich Weigand | 339d059 | 2012-11-05 19:39:45 +0000 | [diff] [blame^] | 1 | ; Verify that i32 argument/return values are extended to i64 |
| 2 | |
| 3 | ; RUN: llc < %s | FileCheck %s |
| 4 | 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-f128:128:128-v128:128:128-n32:64" |
| 5 | target triple = "powerpc64-unknown-linux-gnu" |
| 6 | |
| 7 | @si = common global i32 0, align 4 |
| 8 | @ui = common global i32 0, align 4 |
| 9 | |
| 10 | declare void @arg_si(i32 signext) |
| 11 | declare void @arg_ui(i32 zeroext) |
| 12 | |
| 13 | declare signext i32 @ret_si() |
| 14 | declare zeroext i32 @ret_ui() |
| 15 | |
| 16 | define void @pass_arg_si() nounwind { |
| 17 | entry: |
| 18 | %0 = load i32* @si, align 4 |
| 19 | tail call void @arg_si(i32 signext %0) nounwind |
| 20 | ret void |
| 21 | } |
| 22 | ; CHECK: @pass_arg_si |
| 23 | ; CHECK: lwa 3, |
| 24 | ; CHECK: bl arg_si |
| 25 | |
| 26 | define void @pass_arg_ui() nounwind { |
| 27 | entry: |
| 28 | %0 = load i32* @ui, align 4 |
| 29 | tail call void @arg_ui(i32 zeroext %0) nounwind |
| 30 | ret void |
| 31 | } |
| 32 | ; CHECK: @pass_arg_ui |
| 33 | ; CHECK: lwz 3, |
| 34 | ; CHECK: bl arg_ui |
| 35 | |
| 36 | define i64 @use_arg_si(i32 signext %x) nounwind readnone { |
| 37 | entry: |
| 38 | %conv = sext i32 %x to i64 |
| 39 | ret i64 %conv |
| 40 | } |
| 41 | ; CHECK: @use_arg_si |
| 42 | ; CHECK: %entry |
| 43 | ; CHECK-NEXT: blr |
| 44 | |
| 45 | define i64 @use_arg_ui(i32 zeroext %x) nounwind readnone { |
| 46 | entry: |
| 47 | %conv = zext i32 %x to i64 |
| 48 | ret i64 %conv |
| 49 | } |
| 50 | ; CHECK: @use_arg_ui |
| 51 | ; CHECK: %entry |
| 52 | ; CHECK-NEXT: blr |
| 53 | |
| 54 | define signext i32 @pass_ret_si() nounwind readonly { |
| 55 | entry: |
| 56 | %0 = load i32* @si, align 4 |
| 57 | ret i32 %0 |
| 58 | } |
| 59 | ; CHECK: @pass_ret_si |
| 60 | ; CHECK: lwa 3, |
| 61 | ; CHECK: blr |
| 62 | |
| 63 | define zeroext i32 @pass_ret_ui() nounwind readonly { |
| 64 | entry: |
| 65 | %0 = load i32* @ui, align 4 |
| 66 | ret i32 %0 |
| 67 | } |
| 68 | ; CHECK: @pass_ret_ui |
| 69 | ; CHECK: lwz 3, |
| 70 | ; CHECK: blr |
| 71 | |
| 72 | define i64 @use_ret_si() nounwind { |
| 73 | entry: |
| 74 | %call = tail call signext i32 @ret_si() nounwind |
| 75 | %conv = sext i32 %call to i64 |
| 76 | ret i64 %conv |
| 77 | } |
| 78 | ; CHECK: @use_ret_si |
| 79 | ; CHECK: bl ret_si |
| 80 | ; This is to verify the return register (3) set up by the ret_si |
| 81 | ; call is passed on unmodified as return value of use_ret_si. |
| 82 | ; CHECK-NOT: 3 |
| 83 | ; CHECK: blr |
| 84 | |
| 85 | define i64 @use_ret_ui() nounwind { |
| 86 | entry: |
| 87 | %call = tail call zeroext i32 @ret_ui() nounwind |
| 88 | %conv = zext i32 %call to i64 |
| 89 | ret i64 %conv |
| 90 | } |
| 91 | ; CHECK: @use_ret_ui |
| 92 | ; CHECK: bl ret_ui |
| 93 | ; This is to verify the return register (3) set up by the ret_ui |
| 94 | ; call is passed on unmodified as return value of use_ret_ui. |
| 95 | ; CHECK-NOT: 3 |
| 96 | ; CHECK: blr |
| 97 | |