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llvm-mirror/test/CodeGen/Hexagon/bit-skip-byval.ll
Krzysztof Parzyszek fb4a7f1227 [Hexagon] Skip byval arguments when checking parameter attributes
From the point of view of register assignment, byval parameters are
ignored: a byval parameter is not going to be assigned to a register,
and it will not affect the assignments of subsequent parameters.
When matching registers with parameters in the bit tracker, make sure
to skip byval parameters before advancing the registers.

llvm-svn: 278375
2016-08-11 18:15:16 +00:00

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LLVM

; RUN: llc -march=hexagon < %s | FileCheck %s
;
; Either and or zxtb.
; CHECK: r0 = and(r1, #255)
%struct.t0 = type { i32 }
define i32 @foo(%struct.t0* byval align 8 %s, i8 zeroext %t, i8 %u) #0 {
%a = zext i8 %u to i32
ret i32 %a
}