[llvm] TargetLibraryInfo: Use pointer index size to determine getSizeTSize(). (PR #118747)

[Nicola Zaghen via llvm-commits]

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@@ -8,11 +8,10 @@ target datalayout = "e-m:o-p:40:64:64:32-i64:64-f80:128-n8:16:32:64-S128"
 @.str.1 = private unnamed_addr constant [2 x i8] c"w\00", align 1
 @.str.2 = private unnamed_addr constant [4 x i8] c"str\00", align 1
 
-; Check fwrite is generated with arguments of ptr size, not index size
 define internal void @fputs_test_custom_dl() {
 ; CHECK-LABEL: @fputs_test_custom_dl(
 ; CHECK-NEXT:    [[CALL:%.*]] = call ptr @fopen(ptr nonnull @.str, ptr nonnull @.str.1)
-; CHECK-NEXT:    [[TMP1:%.*]] = call i40 @fwrite(ptr nonnull @.str.2, i40 3, i40 1, ptr [[CALL]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @fwrite(ptr nonnull @.str.2, i32 3, i32 1, ptr %call)
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nzaghen wrote:

This change looks fine -- at least the pointer index part and brings it in line with the original intent of the test. 
A test editing commit seems to have changed the i32 to i40: https://github.com/llvm/llvm-project/commit/fcfc31fffb9a83416453e60bd0dff2df93c2ee20

https://github.com/llvm/llvm-project/pull/118747