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llvm-mirror/test/CodeGen/MSP430/indirectbr2.ll
Vadzim Dambrouski bdc6e663e7 [MSP430] Add SRet support to MSP430 target
This patch adds support for struct return values to the MSP430
target backend. It also reverses the order of argument and return
registers in the calling convention to bring it into closer
alignment with the published EABI from TI.

Patch by Andrew Wygle (awygle).

Differential Revision: https://reviews.llvm.org/D29069

llvm-svn: 296807
2017-03-02 20:25:10 +00:00

30 lines
1.3 KiB
LLVM

; RUN: llc -march=msp430 < %s | FileCheck %s
@C.0.2070 = private constant [5 x i8*] [i8* blockaddress(@foo, %L1), i8* blockaddress(@foo, %L2), i8* blockaddress(@foo, %L3), i8* blockaddress(@foo, %L4), i8* blockaddress(@foo, %L5)] ; <[5 x i8*]*> [#uses=1]
define internal i16 @foo(i16 %i) nounwind {
entry:
%tmp1 = getelementptr inbounds [5 x i8*], [5 x i8*]* @C.0.2070, i16 0, i16 %i ; <i8**> [#uses=1]
%gotovar.4.0 = load i8*, i8** %tmp1, align 4 ; <i8*> [#uses=1]
; CHECK: br .LC.0.2070(r12)
indirectbr i8* %gotovar.4.0, [label %L5, label %L4, label %L3, label %L2, label %L1]
L5: ; preds = %bb2
br label %L4
L4: ; preds = %L5, %bb2
%res.0 = phi i16 [ 385, %L5 ], [ 35, %entry ] ; <i16> [#uses=1]
br label %L3
L3: ; preds = %L4, %bb2
%res.1 = phi i16 [ %res.0, %L4 ], [ 5, %entry ] ; <i16> [#uses=1]
br label %L2
L2: ; preds = %L3, %bb2
%res.2 = phi i16 [ %res.1, %L3 ], [ 1, %entry ] ; <i16> [#uses=1]
br label %L1
L1: ; preds = %L2, %bb2
%res.3 = phi i16 [ %res.2, %L2 ], [ 2, %entry ] ; <i16> [#uses=1]
ret i16 %res.3
}