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llvm-project/llvm/test/CodeGen/NVPTX/globals_init.ll

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The constant initialization for globals in NVPTX is generated as an array of bytes. The generation of this byte arrays was expecting the host to be little endian, which prevents big endian hosts to be used in the generation of the PTX code. This patch fixes the problem by changing the way the bytes are extracted so that it works for either little and big endian. llvm-svn: 239412
2015-06-10 00:29:34 +08:00
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
; Make sure the globals constant initializers are not prone to host endianess
; issues.
; CHECK-DAG: .b8 Gbli08[2] = {171, 205};
@Gbli08 = global [2 x i8] [i8 171, i8 205]
; CHECK-DAG: .b8 Gbli16[4] = {205, 171, 1, 239};
@Gbli16 = global [2 x i16] [i16 43981, i16 61185]
; CHECK-DAG: .b8 Gbli32[8] = {1, 239, 205, 171, 137, 103, 69, 35};
@Gbli32 = global [2 x i32] [i32 2882400001, i32 591751049]
; CHECK-DAG: .b8 Gbli64[16] = {137, 103, 69, 35, 1, 239, 205, 171, 239, 205, 171, 137, 103, 69, 35, 1};
@Gbli64 = global [2 x i64] [i64 12379813738877118345, i64 81985529216486895]
[NVPTX] Simplify and generalize constant printer. This allows handling i128 values and fixes https://bugs.llvm.org/show_bug.cgi?id=51789. Differential Revision: https://reviews.llvm.org/D109458
2021-08-28 02:18:11 +08:00
; CHECK-DAG: .b8 Gbli128[32] = {16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
@Gbli128 = global [2 x i128] [i128 1339673755198158349044581307228491536, i128 21345817372864405881847059188222722561]
The constant initialization for globals in NVPTX is generated as an array of bytes. The generation of this byte arrays was expecting the host to be little endian, which prevents big endian hosts to be used in the generation of the PTX code. This patch fixes the problem by changing the way the bytes are extracted so that it works for either little and big endian. llvm-svn: 239412
2015-06-10 00:29:34 +08:00
; CHECK-DAG: .b8 Gblf32[8] = {192, 225, 100, 75, 0, 96, 106, 69};
@Gblf32 = global [2 x float] [float 1.5e+7, float 3.75e+3]
; CHECK-DAG: .b8 Gblf64[16] = {116, 10, 181, 48, 134, 62, 230, 58, 106, 222, 138, 98, 204, 250, 200, 75};
@Gblf64 = global [2 x double] [double 5.75e-25, double 12.25e+56]
[NVPTX] Simplify and generalize constant printer. This allows handling i128 values and fixes https://bugs.llvm.org/show_bug.cgi?id=51789. Differential Revision: https://reviews.llvm.org/D109458
2021-08-28 02:18:11 +08:00
; Make sure we fill in alignment gaps correctly.
; CHECK-DAG: .b8 GblU[12] = {7, 6, 0, 0, 5, 4, 3, 2, 1, 0, 0, 0};
@GblU = global {i16, i32, i8} {i16 1543, i32 33752069, i8 1}