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Add basic ability to setup call frame, and make procedure calls.

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Hello world will compile and execute with this patch.

Patch by Reed Kotler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160651 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2012-07-23 23:45:54 +00:00
parent 581a739226
commit 3ee306cbc0
11 changed files with 341 additions and 47 deletions
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17
test/CodeGen/Mips/helloworld_call.ll Normal file
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; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16
@.str = private unnamed_addr constant [13 x i8] c"hello world\0A\00", align 1
define i32 @main() nounwind {
entry:
%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([13 x i8]* @.str, i32 0, i32 0))
ret i32 0
; 16: .set mips16 # @main
; 16: move $gp, ${{[0-9]+}}
; 16: jalr ${{[0-9]+}}
; 16: li $2, 0
}
declare i32 @printf(i8*, ...)

18
test/CodeGen/Mips/helloworld_pe.ll Normal file
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; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16
@.str = private unnamed_addr constant [13 x i8] c"hello world\0A\00", align 1
define i32 @main() nounwind {
entry:
%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([13 x i8]* @.str, i32 0, i32 0))
ret i32 0
; 16: .set mips16 # @main
; 16: li $[[T1:[0-9]+]], %hi(_gp_disp)
; 16: addiu $[[T2:[0-9]+]], $pc, %lo(_gp_disp)
; 16: sll $[[T3:[0-9]+]], $[[T1]], 16
; 16: li $2, 0
}
declare i32 @printf(i8*, ...)

16
test/CodeGen/Mips/helloworld_sr.ll Normal file
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; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16
@.str = private unnamed_addr constant [13 x i8] c"hello world\0A\00", align 1
define i32 @main() nounwind {
entry:
%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([13 x i8]* @.str, i32 0, i32 0))
ret i32 0
; 16: .set mips16 # @main
; 16: save $ra, [[FS:[0-9]+]]
; 16: restore $ra, [[FS]]
}
declare i32 @printf(i8*, ...)